1. Colloq., Kesz;Bondy,1975
2. Proc. Conf.,;Halin,1971
3. On a Family of Planar Bicritical Graphs
4. A pancyclic graph conjecture. In Notes from New York Graph Theory Day II, New York Academy of Sciences (1980).
5. Cycles in Halin-like graphs. Graphen und Netzwerke—Theorie und Anwendung, Technische Hochschule Ilmenau (1982) 33–35.