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1Morris, L.R.: ¬The frequency of use of Library of Congress Classification numbers and Dewey Decimal Classification numbers in the MARC file in the field of library science.
In: Technical services quarterly. 8(1991) no.1, S.37-49.
Abstract: The LCC and DDC systems were devised and updated by librarians who had and have no access to the eventual frequency of use of each number in those classification systems. 80% of the monographs in a MARC file of over 1.000.000 records are classified into 20% of the classification numbers in the field of library science and only 20% of the mongraphs are classified into 80% of the classification numbers in the field of library science. Classification of monographs coulld be made easier and performed more accurately if many of the little used and unused numbers were eliminated and many of the most crowded numbers were expanded. A number of examples are included
Objekt: DDC ; LCC
2Morris, L.R.: Choosing a bibliographic utility.
New York : Neal-Schuman, 1989. 137 S.
Anmerkung: Rez. in: Special libraries 81(1990) no.3, S.256-257 (J. B. Barnett)
Compass: Information retrieval / Use of / On-line computers