-
Subject indexing : principles and practices in the 90's. Proceedings of the IFLA Satellite Meeting Held in Lisbon, Portugal, 17-18 August 1993, and sponsored by the IFLA Section on Classification and Indexing and the Instituto da Biblioteca Nacional e do Livro, Lisbon, Portugal (1995)
0.01
0.0057483944 = product of:
0.04023876 = sum of:
0.034309957 = weight(_text_:bedeutung in 6042) [ClassicSimilarity], result of:
0.034309957 = score(doc=6042,freq=2.0), product of:
0.12347616 = queryWeight, product of:
5.0299306 = idf(docFreq=785, maxDocs=44218)
0.024548283 = queryNorm
0.27786705 = fieldWeight in 6042, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
5.0299306 = idf(docFreq=785, maxDocs=44218)
0.0390625 = fieldNorm(doc=6042)
0.005928802 = product of:
0.023715207 = sum of:
0.023715207 = weight(_text_:j in 6042) [ClassicSimilarity], result of:
0.023715207 = score(doc=6042,freq=6.0), product of:
0.07800208 = queryWeight, product of:
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.024548283 = queryNorm
0.304033 = fieldWeight in 6042, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.0390625 = fieldNorm(doc=6042)
0.25 = coord(1/4)
0.14285715 = coord(2/14)
- Abstract
- Dieser Band enthält die gesammelten Vorträge der IFLA-Arbeitsgruppe für verbale Sacherschließung. Berichte über länder- und damit sprachspezifische Historien der Schlagwortkataloge und den heute gültigen Regeln der Klassifikation. Neben diesem internationalen Überblick bietet der Band weitere aktuell diskutierte Ansätze, die vor allem im Zusammenhang mit dem Aufbau zahlreicher Nationalbibliotheken in den osteuropäischen Ländern von Bedeutung sind
- Content
- Enthält folgende Beiträge: McGARRY, D.: Introduction; HOLLEY, R.P.: Editor's comments; DECOURT, E. u. S.M.G. PACHECO: Subject analysis in the Brazilian Library Network BIBLIODATA CALCO; PARENT, I.: Subject access to library materials in Canada: overview; SCHWEITZER, A.: Subject access to library materials in Canada: a balancing act between conformity and divergence; WILLER, M.: Subject access systems in use in Croatia; MASTROVIC, M.: Cataloguing graphics in the prints collection: National and University Library, Zagreb, Croatia; JOUGUELET, S.: Evolution of subject indexing practice in France; HEINER-FREILING, M.: Subject indexing in the nineties: the situation in Germany; SOLTANI, P.: Subject access in Iran; SADOWSKA, J.: Subject catalogues in Poland; LOPES, M.I.: Subject indexing in Portuguese libraries: a new approach with SIPORbase; CASTELLOTE, P.B.: Subject indexing at the National Library of Spain; McILWAINE, I.C.: Subject control: the British viewpoint; CHAN, L.M.: Subject access systems in the USA; FUGMANN, R.: The complementary of natural and controlled languages in indexing; SVENONIUS, E.: Precoordination or not?; REY, J.: International tendencies in terminology and indexing; WILLIAMSON, N.J.: Standards and standardization in subject analysis systems: current status and future directions: BEALL, J.: Summary
-
Svenonius, E.: Präkoordination - ja oder nein? (1994)
0.00
0.0029408536 = product of:
0.04117195 = sum of:
0.04117195 = weight(_text_:bedeutung in 1643) [ClassicSimilarity], result of:
0.04117195 = score(doc=1643,freq=2.0), product of:
0.12347616 = queryWeight, product of:
5.0299306 = idf(docFreq=785, maxDocs=44218)
0.024548283 = queryNorm
0.33344045 = fieldWeight in 1643, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
5.0299306 = idf(docFreq=785, maxDocs=44218)
0.046875 = fieldNorm(doc=1643)
0.071428575 = coord(1/14)
- Abstract
- Die Diskussion um Vor- und Nachteile von Präkoordination oder Postkoordination wird unter den in der verbalen Sacherschließung Engagierten in Deutschland seit Jahren geführt. Mit zunehmender Verbreitung der RSWK gewinnen die Überlegungen, die sich angesichts der Ausbreitung des OPAC für das 'Zerschlagen' der Schlagwortketten aussprechen, an Bedeutung. In diesem Zusammenhang trägt eine Berücksichtigung der internationalen Debatte um Prä- und Postkoordination zur Erweiterung des nationalen Horizontes bei. Der Beitrag ist eine leicht gekürzte Übersetzung eines Referates, das die Autorin beim IFLA Satellite Meeting zum Thema 'Subject indexing in the 90's - principles and practices' im August 1993 in Lissabon gehalten hat
-
(Sears') List of Subject Headings (1997)
0.00
0.0015425638 = product of:
0.021595892 = sum of:
0.021595892 = product of:
0.043191783 = sum of:
0.023236064 = weight(_text_:j in 3788) [ClassicSimilarity], result of:
0.023236064 = score(doc=3788,freq=4.0), product of:
0.07800208 = queryWeight, product of:
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.024548283 = queryNorm
0.2978903 = fieldWeight in 3788, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.046875 = fieldNorm(doc=3788)
0.01995572 = weight(_text_:22 in 3788) [ClassicSimilarity], result of:
0.01995572 = score(doc=3788,freq=2.0), product of:
0.085963905 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.024548283 = queryNorm
0.23214069 = fieldWeight in 3788, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=3788)
0.5 = coord(2/4)
0.071428575 = coord(1/14)
- Content
- Vorgänger: 'List of Subject Headings for small libraries, compiled from lists used in nine representative small libraries', Ed.: M.E. Sears. - 1st ed. 1923. - 2nd ed. 1926. - 3rd ed. 1933. - 4th ed. 1939, Ed.: I.S. Monro. - 5th ed. 1944: 'Sears List of Subject Headings', Ed. I. S. Monro. - 6th ed. 1950, Ed.: B.M. Frick. - 7th ed. 1954 - 8th ed. 1959. - 'List of Subject Headings'. - 9th. ed. 1965, Ed.: B.M. Westby. - 10th ed. 1972. - 11th ed. 1977. - 12th ed. 1982. - 13th ed. 1986, Ed.: C. Rovira u. C. Reyes. - 14th ed. 1991. Ed. M.T. Mooney. - 15th ed. 1994, Ed.: J. Miller // Rez. 15th ed.: Knowledge organization 22(1995) no.1, S.45-46 (M.P. Satija)
- Editor
- Miller, J.
-
(Sears') List of Subject Headings (1994)
0.00
0.0015160876 = product of:
0.021225225 = sum of:
0.021225225 = product of:
0.04245045 = sum of:
0.019168774 = weight(_text_:j in 3789) [ClassicSimilarity], result of:
0.019168774 = score(doc=3789,freq=2.0), product of:
0.07800208 = queryWeight, product of:
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.024548283 = queryNorm
0.24574696 = fieldWeight in 3789, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.0546875 = fieldNorm(doc=3789)
0.023281675 = weight(_text_:22 in 3789) [ClassicSimilarity], result of:
0.023281675 = score(doc=3789,freq=2.0), product of:
0.085963905 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.024548283 = queryNorm
0.2708308 = fieldWeight in 3789, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0546875 = fieldNorm(doc=3789)
0.5 = coord(2/4)
0.071428575 = coord(1/14)
- Editor
- Miller, J.
- Footnote
- Rez. in: Knowledge organization 22(1995) no.1, S.45-46 (M.P. Satija)
-
Hartley, J.; Sydes, M.: Which layout do you prefer? : an analysis of readers' preferences for different typographic layouts of structured abstracts (1996)
0.00
0.0012995036 = product of:
0.01819305 = sum of:
0.01819305 = product of:
0.0363861 = sum of:
0.016430378 = weight(_text_:j in 4411) [ClassicSimilarity], result of:
0.016430378 = score(doc=4411,freq=2.0), product of:
0.07800208 = queryWeight, product of:
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.024548283 = queryNorm
0.21064025 = fieldWeight in 4411, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.046875 = fieldNorm(doc=4411)
0.01995572 = weight(_text_:22 in 4411) [ClassicSimilarity], result of:
0.01995572 = score(doc=4411,freq=2.0), product of:
0.085963905 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.024548283 = queryNorm
0.23214069 = fieldWeight in 4411, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=4411)
0.5 = coord(2/4)
0.071428575 = coord(1/14)
- Source
- Journal of information science. 22(1996) no.1, S.27-37
-
Anderson, J.D.; Pérez-Carballo, J.: Library of Congress Subject Headings (LCSH) (2009)
0.00
0.0012995036 = product of:
0.01819305 = sum of:
0.01819305 = product of:
0.0363861 = sum of:
0.016430378 = weight(_text_:j in 3837) [ClassicSimilarity], result of:
0.016430378 = score(doc=3837,freq=2.0), product of:
0.07800208 = queryWeight, product of:
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.024548283 = queryNorm
0.21064025 = fieldWeight in 3837, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.046875 = fieldNorm(doc=3837)
0.01995572 = weight(_text_:22 in 3837) [ClassicSimilarity], result of:
0.01995572 = score(doc=3837,freq=2.0), product of:
0.085963905 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.024548283 = queryNorm
0.23214069 = fieldWeight in 3837, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=3837)
0.5 = coord(2/4)
0.071428575 = coord(1/14)
- Date
- 27. 8.2011 14:22:13
-
Koblitz, J.: Schlagwortgebung in der Information und Dokumentation (1973)
0.00
7.823989E-4 = product of:
0.010953585 = sum of:
0.010953585 = product of:
0.04381434 = sum of:
0.04381434 = weight(_text_:j in 1362) [ClassicSimilarity], result of:
0.04381434 = score(doc=1362,freq=2.0), product of:
0.07800208 = queryWeight, product of:
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.024548283 = queryNorm
0.5617073 = fieldWeight in 1362, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.125 = fieldNorm(doc=1362)
0.25 = coord(1/4)
0.071428575 = coord(1/14)
-
Chan, L.M.: Library of Congress Subject Headings : principles and application (1995)
0.00
7.127043E-4 = product of:
0.00997786 = sum of:
0.00997786 = product of:
0.03991144 = sum of:
0.03991144 = weight(_text_:22 in 3985) [ClassicSimilarity], result of:
0.03991144 = score(doc=3985,freq=2.0), product of:
0.085963905 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.024548283 = queryNorm
0.46428138 = fieldWeight in 3985, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.09375 = fieldNorm(doc=3985)
0.25 = coord(1/4)
0.071428575 = coord(1/14)
- Date
- 25.11.2005 18:37:22
-
Ho, J.: ¬An analysis of the structure of a subject heading list (1993)
0.00
6.845991E-4 = product of:
0.009584387 = sum of:
0.009584387 = product of:
0.038337547 = sum of:
0.038337547 = weight(_text_:j in 6856) [ClassicSimilarity], result of:
0.038337547 = score(doc=6856,freq=2.0), product of:
0.07800208 = queryWeight, product of:
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.024548283 = queryNorm
0.4914939 = fieldWeight in 6856, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.109375 = fieldNorm(doc=6856)
0.25 = coord(1/4)
0.071428575 = coord(1/14)
-
(Sears') List of Subject Headings (2000)
0.00
5.9288024E-4 = product of:
0.008300323 = sum of:
0.008300323 = product of:
0.033201292 = sum of:
0.033201292 = weight(_text_:j in 6112) [ClassicSimilarity], result of:
0.033201292 = score(doc=6112,freq=6.0), product of:
0.07800208 = queryWeight, product of:
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.024548283 = queryNorm
0.42564622 = fieldWeight in 6112, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.0546875 = fieldNorm(doc=6112)
0.25 = coord(1/4)
0.071428575 = coord(1/14)
- Content
- Vorgänger: 'List of Subject Headings for small libraries, compiled from lists used in nine representative small libraries', Ed.: M.E. Sears. - 1st ed. 1923. - 2nd ed. 1926. - 3rd ed. 1933. - 4th ed. 1939, Ed.: I.S. Monro. - 5th ed. 1944: 'Sears List of Subject Headings', Ed. I. S. Monro. - 6th ed. 1950, Ed.: B.M. Frick. - 7th ed. 1954 - 8th ed. 1959. - 'List of Subject Headings'. - 9th. ed. 1965, Ed.: B.M. Westby. - 10th ed. 1972. - 11th ed. 1977. - 12th ed. 1982. - 13th ed. 1986, Ed.: C. Rovira u. C. Reyes. - 14th ed. 1991. Ed. M.T. Mooney. - 15th ed. 1994, Ed.: J. Miller - 16th ed. 1997, Ed.: J. Miller
- Editor
- Miller, J.
-
Studwell, W.E.: Why not an 'AACR' for subject headings? (1985)
0.00
4.157442E-4 = product of:
0.0058204187 = sum of:
0.0058204187 = product of:
0.023281675 = sum of:
0.023281675 = weight(_text_:22 in 363) [ClassicSimilarity], result of:
0.023281675 = score(doc=363,freq=2.0), product of:
0.085963905 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.024548283 = queryNorm
0.2708308 = fieldWeight in 363, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0546875 = fieldNorm(doc=363)
0.25 = coord(1/4)
0.071428575 = coord(1/14)
- Date
- 7. 1.2007 13:22:01
-
Hearn, S.: Comparing catalogs : currency and consistency of controlled headings (2009)
0.00
4.157442E-4 = product of:
0.0058204187 = sum of:
0.0058204187 = product of:
0.023281675 = sum of:
0.023281675 = weight(_text_:22 in 3600) [ClassicSimilarity], result of:
0.023281675 = score(doc=3600,freq=2.0), product of:
0.085963905 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.024548283 = queryNorm
0.2708308 = fieldWeight in 3600, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0546875 = fieldNorm(doc=3600)
0.25 = coord(1/4)
0.071428575 = coord(1/14)
- Date
- 10. 9.2000 17:38:22
-
Sadowska, J.: Hasla przedmiotowe Biblioteki Narodowej. Przejmowac? Zmienac? Odrzucac? (1995)
0.00
3.9119946E-4 = product of:
0.0054767923 = sum of:
0.0054767923 = product of:
0.02190717 = sum of:
0.02190717 = weight(_text_:j in 1459) [ClassicSimilarity], result of:
0.02190717 = score(doc=1459,freq=2.0), product of:
0.07800208 = queryWeight, product of:
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.024548283 = queryNorm
0.28085366 = fieldWeight in 1459, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.0625 = fieldNorm(doc=1459)
0.25 = coord(1/4)
0.071428575 = coord(1/14)
-
MacEwan, A.: Crossing language barriers in Europe : Linking LCSH to other subject heading languages (2000)
0.00
3.5635216E-4 = product of:
0.00498893 = sum of:
0.00498893 = product of:
0.01995572 = sum of:
0.01995572 = weight(_text_:22 in 5618) [ClassicSimilarity], result of:
0.01995572 = score(doc=5618,freq=2.0), product of:
0.085963905 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.024548283 = queryNorm
0.23214069 = fieldWeight in 5618, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=5618)
0.25 = coord(1/4)
0.071428575 = coord(1/14)
- Date
- 27. 5.2001 16:22:10
-
Chan, L.M.; Hodges, T.: Entering the millennium : a new century for LCSH (2000)
0.00
3.5635216E-4 = product of:
0.00498893 = sum of:
0.00498893 = product of:
0.01995572 = sum of:
0.01995572 = weight(_text_:22 in 5920) [ClassicSimilarity], result of:
0.01995572 = score(doc=5920,freq=2.0), product of:
0.085963905 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.024548283 = queryNorm
0.23214069 = fieldWeight in 5920, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=5920)
0.25 = coord(1/4)
0.071428575 = coord(1/14)
- Date
- 27. 5.2001 16:22:21
-
O'Neill, E.T.; Chan, L.M.; Childress, E.; Dean, R.; El-Hoshy, L.M.; Vizine-Goetz, D.: Form subdivisions : their identification and use in LCSH (2001)
0.00
3.5635216E-4 = product of:
0.00498893 = sum of:
0.00498893 = product of:
0.01995572 = sum of:
0.01995572 = weight(_text_:22 in 2205) [ClassicSimilarity], result of:
0.01995572 = score(doc=2205,freq=2.0), product of:
0.085963905 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.024548283 = queryNorm
0.23214069 = fieldWeight in 2205, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=2205)
0.25 = coord(1/4)
0.071428575 = coord(1/14)
- Date
- 10. 9.2000 17:38:22
-
Sears' list of subject headings (2018)
0.00
3.5635216E-4 = product of:
0.00498893 = sum of:
0.00498893 = product of:
0.01995572 = sum of:
0.01995572 = weight(_text_:22 in 4652) [ClassicSimilarity], result of:
0.01995572 = score(doc=4652,freq=2.0), product of:
0.085963905 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.024548283 = queryNorm
0.23214069 = fieldWeight in 4652, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=4652)
0.25 = coord(1/4)
0.071428575 = coord(1/14)
- Date
- 21.12.2018 18:22:12
-
Cheti, A.; Viti, E.: Functionality and merits of a faceted thesaurus : the case of the Nuovo soggettario (2023)
0.00
3.5635216E-4 = product of:
0.00498893 = sum of:
0.00498893 = product of:
0.01995572 = sum of:
0.01995572 = weight(_text_:22 in 1181) [ClassicSimilarity], result of:
0.01995572 = score(doc=1181,freq=2.0), product of:
0.085963905 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.024548283 = queryNorm
0.23214069 = fieldWeight in 1181, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=1181)
0.25 = coord(1/4)
0.071428575 = coord(1/14)
- Date
- 26.11.2023 18:59:22
-
Ganendran, J.: Learn Library of Confress subject access (2000)
0.00
3.4229955E-4 = product of:
0.0047921934 = sum of:
0.0047921934 = product of:
0.019168774 = sum of:
0.019168774 = weight(_text_:j in 1368) [ClassicSimilarity], result of:
0.019168774 = score(doc=1368,freq=2.0), product of:
0.07800208 = queryWeight, product of:
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.024548283 = queryNorm
0.24574696 = fieldWeight in 1368, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.0546875 = fieldNorm(doc=1368)
0.25 = coord(1/4)
0.071428575 = coord(1/14)
-
Newsom, C.; Lundgren, J.; Poehlmann, N.: Genre terms for chemistry and engineering : not just for literature anymore (2008)
0.00
3.4229955E-4 = product of:
0.0047921934 = sum of:
0.0047921934 = product of:
0.019168774 = sum of:
0.019168774 = weight(_text_:j in 2232) [ClassicSimilarity], result of:
0.019168774 = score(doc=2232,freq=2.0), product of:
0.07800208 = queryWeight, product of:
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.024548283 = queryNorm
0.24574696 = fieldWeight in 2232, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.0546875 = fieldNorm(doc=2232)
0.25 = coord(1/4)
0.071428575 = coord(1/14)
