Search (5 results, page 1 of 1)

  • × theme_ss:"Informetrie"
  • × type_ss:"a"
  • × year_i:[1980 TO 1990}
  1. Nicholls, P.T.: Empirical validation of Lotka's law (1986) 0.03 
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    Source
    Information processing and management. 22(1986), S.417-419
  2. Fiala, J.: Information flood : fiction and reality (1987) 0.03 
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    Source
    Thermochimica acta. 110(1987), S.11-22
  3. Vinkler, P.: ¬A quasi-quantitative citation model (1987) 0.01 
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    Source
    Scientometrics. 12(1987) nos.1-2, S.47-72
  4. Folly, G.; Hajtman, B.; Nagy, J.I.; Ruff, I.: Some methodological problems in ranking scientists by citation analysis (1981) 0.01 
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    Source
    Scientometrics. 3(1981) no.2, S.135-147
  5. Umstätter, W.; Rehm, M.; Dorogi, Z.: ¬Die Halbwertszeit in der naturwissenschaftlichen Literatur (1982) 0.01 
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    Abstract
    Aus der Benutzung der Universitätsbibliothek Ulm wurde eine Halbwertszeit-Funktion in der naturwissenschaftlichen Literatur von t1/2=5 Jahren bestimmt. Eine interessante Abweichung von dieser Halbwertszeit-Funktion ist bei der Bestellung der neuesten Zeitschriften zu beobachten. Der Grund hierfür liegt vermutlich darin, daß Wissenschaftler das Vierfache an neuester Literatur lesen müssen, um wissenschaftliche Trends zu überschauen. Eine weitere Abweichung ist in der ältesten Literatur festzustellen, bei den sog. 'citation classics'. Übereinstimmung zeigt sich im Zitier- und Kopierverhalten bei Zeitschriftenliteratur, die älter als 2 Jahre ist. Etwa 27% der an die UB Ulm gerichteten Literaturanforderungen betreffen Zeitschriftenaufsätze mit einem Alter von über 10 Jahren, da diese Bestände für die Benutzer nur schwer zugänglich sind. Dies zeigt die große Bedeutung einer Freihand-Bibliothek
    Source
    Nachrichten für Dokumentation. 33(1982) H.2, S.50-52

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