Search (2 results, page 1 of 1)

  • × author_ss:"Stevens, N.D."
  • × type_ss:"m"
  1. Stevens, N.D.: ¬A comparative study of three systems of information retrieval (1961) 0.01 
    0.008268503 = product of:
  0.06614802 = sum of:
    0.06614802 = weight(_text_:libraries in 6241) [ClassicSimilarity], result of:
      0.06614802 = score(doc=6241,freq=2.0), product of:
        0.13017908 = queryWeight, product of:
          3.2850544 = idf(docFreq=4499, maxDocs=44218)
          0.03962768 = queryNorm
        0.50813097 = fieldWeight in 6241, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2850544 = idf(docFreq=4499, maxDocs=44218)
          0.109375 = fieldNorm(doc=6241)
  0.125 = coord(1/8)
    Footnote
    Rez. in: College and research libraries 24(1963) no.2, S.169-170 (R.H. Parker)
  2. Stevens, N.D.: Postcards in the library : invaluable visual resources (1996) 0.01 
    0.0066819587 = product of:
  0.05345567 = sum of:
    0.05345567 = weight(_text_:libraries in 7883) [ClassicSimilarity], result of:
      0.05345567 = score(doc=7883,freq=4.0), product of:
        0.13017908 = queryWeight, product of:
          3.2850544 = idf(docFreq=4499, maxDocs=44218)
          0.03962768 = queryNorm
        0.4106318 = fieldWeight in 7883, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.2850544 = idf(docFreq=4499, maxDocs=44218)
          0.0625 = fieldNorm(doc=7883)
  0.125 = coord(1/8)
    Abstract
    Collection of articles covering the collecting and uses for postcards in libraries. Presents compelling reasons why libraries should take a more active role in establishing and maintaining postcard collections and encourage their use. Explains the nature and accessibility of existing postcard collections, techniques for acquiring, arranging, preserving and handling collections; and ways to make researchers and library users aware of these collections

Years