When is a poset isomorphic to the poset of connected induced subgraphs of a graph? Kézdy, André; Seif, Steve — 1996 Southwest Journal of Pure and Applied Mathematics [electronic only]
Generalized Schur numbers for x 1 + x 2 + c = 3 x 3 . Kézdy, André E.; Snevily, Hunter S.; White, Susan C. — 2009 The Electronic Journal of Combinatorics [electronic only]