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EmacsWiki: Abbrev Mode
Defining Abbrevs (GNU Emacs Manual)
How to get emacs tempo mode working with abbrevs for C/C++?
2.5 Entering Mathematics | Emacs Docs
C Modes (GNU Emacs Manual)
CC Mode Manual
Meadow/Emacs memo: モードとキーバインドの基礎と Elisp
Word Abbreviation Mode - Learning GNU Emacs, Second ...
Colorado State University
MIT Scheme User's Manual - Comparison of Edwin to Emacs