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CASSI (CAS Source Index)

CASSI consists of  the following individual products:

1907-2004 Cumulative Index

This four-volume source book from CAS is published every five years and contains:

• approximately 175,000 entries
• bibliographic information for more than 80,000 scientific and technical serial and non-serial publications
• source material cited in Beilstein and Chemisches Zentralblatt as far back as 1830

Quarterly Supplements

Supplements to the 1907-2004 Cumulative Index are issued each quarter for a period of five years to provide timely updates to the Cumulative.

These supplements add approximately 2,000 titles per year and report the:

• periodicals added to CAS coverage
• changes in the bibliographic information of scientific and technical publications

The Fourth Quarterly Supplement of each year:

• adds entries from the year's fourth quarter
• cumulates and replaces the previous three summaries