Evolutionäre Synthese neuronaler Netze unter Verwendung von Graph-Grammatiken. - Ralph Heider (Shaker, 1997)

Generalized neural networks for fuzzy modeling. - Karl-Heinz Temme; Ralph Heider; Claudio Moraga (EUSFLAT-ESTYLF Joint Conf., 1999)

"New lamps for old!" (Generalized Multiple-valued Neurons). - Claudio Moraga; Ralph Heider (ISMVL, 1999)