Search (2 results, page 1 of 1)

  • × author_ss:"Chan, L.M."
  • × theme_ss:"Klassifikationssysteme im Online-Retrieval"
  • × year_i:[1980 TO 1990}
  1. Chan, L.M.: Library of Congress class numbers in online catalog searching (1989) 0.00 
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    Abstract
    In addition to using title keywords and subject headings for searching in the online catalog, the searcher may also use class numbers as access points. Library of Congress class or call numbers are particular effective in certain kinds of specific-item subject searching and serve as supplements to keywords and descriptors, improving precision and recall. Class number searching in the database can produce unique results because these numbers collect citations in ways that differ from those of keywords and descriptors
  2. Chan, L.M.: Library of Congress Classification as an online retrieval tool : potentials and limitations (1986) 0.00 
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