1. Research Problem 77;Eggleton;Discrete Math.,1986
2. Three unsolved problems in graph theory;Eggleton;Ars Combin.,1987
3. New results on 3-chromatic prime distance graphs;Eggleton;Ars Combin.,1988
4. A linear diophantine equation with applications to non-negative matrices;Mendelsohn;Ann. New York Acad. Sci.,1970
5. Über eine spezielle Klasse unendlicher Graphen;Walther,1990