Manipulation of trees in information retrieval
Communications of the ACM
Communications of the ACM
A catalogue entry retrieval system
Communications of the ACM
A comparison of file organization techniques
ACM '69 Proceedings of the 1969 24th national conference
On the structure of dictionaries for compilers
ACM SIGPLAN Notices
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THE ANALYSIS, reduction, and verification of the data hierarchy utilized in COBOL presents a major problem for implementors of the language. The use of chain list matrices, to be presented in this paper, provides a significant aid in reducing the time required to process the variably structured data elements in a COBOL program.