Self-Referential Sentences

Self-Referential Sentences
Exhaustive lists of "This sentence has three a's" sentences.
http://home.att.net/~rhhardin/selfref.html

Solve my base three numerical self-referential sentences puzzle!
The object of this difficult puzzle is to make four sentences mutually truthful by filling in base three numbers.
http://www.ddewey.net/puzzle/