LispWorks Release Notes and Installation Guide
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13 Release Notes
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13.6 More new features
13.6.2 Unicode character and string functions
13.6.2.1 Unicode case insensitive character comparision
13.6.2.2 Unicode case insensitive string comparision
13.6.2.3 Unicode character predicates
LispWorks Release Notes and Installation Guide - 21 Dec 2009
