A pen, dicks

 The dictionary definition of this type of appendix

supplementary material at the end of a book, article, document, or other text, usually of an explanatory, statistical, or bibliographic nature.

 In our appendix links we saw the explanatory in those Australian rhyming slang words and bibliographic where it pertains to Ernst Bloch. The technical specifications in the other example only expound.

II

We expect to see Works Cited in an academic context where it is important the line of accreditation is acknowledged.

It is also in the nature of the subject matter where little is created from whole cloth. It's not like giving your account of hunting rabbits with a Brno .22 rifle where the ability to entertain or inform are what's important, not how well it cleaves to the purpose or expectation of previous notions.