19. The method as set forth in claim 16 , further comprising: conditional upon the validating finding one or more linked text fragments within a substantial copy of the contiguous group of text fragments identified as table of content entries, (i) removing linked text fragments located within the substantial copy from the group of text fragments identified as linked text fragments and (ii) updating the identifying with text fragments within the substantial copy excluded as candidates for identification as linked text fragments.
16. The method as set forth in claim 12 , wherein the at least one validation criterion comprises: validate conditional upon no linked text fragments being within a substantial copy of the contiguous group of text fragments identified as table of content entries.