|6 Special concerns in indexing||136||11||Some software version numbers, e.g. Linux and GNOME, use dots not as decimal separators but string separators, so that 2.1 is followed by 2.8 which is followed by 2.10.|
|10 Tools for nidexing||265||1||User interface design. User interface design.||User interface design. User interface design.|
|10||271||2||The indexer's ability to recognize patterns and relationships is a unique human skill [sic] cannot be automated||The indexer's ability to recognize patterns and relationships is a unique human skill that cannot be automated|
 Willis, Nathan Decline and fall of the version number. Linux.com, 2005-06-11. Retrieved on 2008-07-12.
 Wellisch, Hans H. NISO TR03-1999 Guidelines for alphabetical arrangement of letters and sorting of numerals and other symbols (PDF). NISO, 1999. Retrieved on 2008-07-12. ISBN: 1-880124-41-6.