This paper compares two types of cycling strategies possible in citation index searching. This is done using a class of pseudo-randomly generated citation digraphs whose elements have bounded bibliography size. An attempt is made to explain the results obtained using a combinatorial formula of general application to digraphs. (10 references)…

Keypunching errors, disarranged entries, and useless keywords are some of the major shortcomings of the Dissertation Abstracts International Retrospective Index." (1 reference) (MM)

University Microfilms' criterion for a good index is whether one is quickly referred by the keywords to those subjects in which he has an interest, not whether there are superfluous noise" words. (Author/MM)

Although the topological index does not uniquely correspond to the individual structure of a graph, it roughly represents the topological nature of the graph. Examples are given for using the topological index as a first sorting device for coding and retrieving structures, especially of fused polycyclic systems. (14 references) (Author/NH)

The computerized conversion of Wiswesser Line Notations to Ring Codes, using a two-part approach, and the set of computer programs generated for the conversion of ring systems are described. (9 references) (Author)

A brief article on periodicals issued by companies and other organizations which are available to libraries on a complimentary basis. (MM)

Prices for U.S. periodicals and serial services indicate 14.5 and 11.3 percent increases respectively over 1981 subscription rates. Using 1977 as the base year, average pricing information by subject category is provided for each year since 1977. Criteria for inclusion of titles in the indexes is explained. (EJS)

Analyzes deferred wage increases and cost-of-living adjustments provided by major collective bargaining agreements in industry that will remain in effect through 1982. (SK)

Prices for U.S. periodical and serial services reveal 13.3 and 13.2 percent increases respectively over 1980 subscription rates. Average pricing information by subject category is provided for each year since 1970 and compared against 1967-69, 1977-79, and 1977 indexing bases. (RAA)

Provides a chart showing differences (as of November 1979) in basic indexes for a number of databases that are available on two or more systems, such as DIALOG, ORBIT, and BRS. For each database, fields that are searched when a single unqualified search term is entered are listed. (Author/JD)

Explains the capabilities of Bibliographic Retrieval Services' CROSS database index, a "postings only" file which serves as a presearch aid to training and database selection, and as a tool for ready reference and interlibrary loan verification. Limitations of the aid are noted, and a specification table summarizes operating information.…

The significance of "Education Index" as a bibliographic tool is questioned, since 95 percent of all education journal titles are presently covered by "Current Index to Journals in Education." (Author/LS)