Wolfgang Windsteiger,
"A Set Theory Prover in Theorema"
, in Roberto Moreno-Diaz, Bruno Buchberger, Jose-Luis Freire: Computer Aided Systems Theory - EUROCAST 2001, Serie Lecture Notes in Computer Science (LNCS), Nummer 2178, Springer, Seite(n) 525-539, 3-2001, ISBN: 3-540-42959