Quelle der ASCII-Texte:
ftp info.cas.org:/pub/database.summaries/ascii/,
ftp ftp.fu-berlin.de:/science/chemistry/cas/database.summaries/ascii/
Quelle der PostScript-Texte:
ftp info.cas.org:/pub/database.summaries/postscript/,
ftp ftp.fu-berlin.de:/science/chemistry/cas/database.summaries/postscript/
STN Databases in Science, Technology, Patents, and Business