Volker Diekert, Markus Lohrey. Existential and Positive Theories of Equations in Graph Products. In Helmut Alt, Afonso Ferreira, editors, STACS 2002, 19th Annual Symposium on Theoretical Aspects of Computer Science, Antibes - Juan les Pins, France, March 14-16, 2002, Proceedings. Volume 2285 of Lecture Notes in Computer Science, pages 501-512, Springer, 2002. [doi]
Abstract is missing.