Closure concepts for claw-free graphs. - Hajo Broersma; Huib Trommel (Discret. Math., 1998)

Pancyclicity of claw-free hamiltonian graphs. - Huib Trommel; Henk Jan Veldman; A. Verschut (Discret. Math., 1999)

Various results on the toughness of graphs. - Hajo Broersma; Erik Engbers; Huib Trommel (Networks, 1999)

Long cycles in 3-cyclable graphs. - Douglas Bauer; Linda E. McGuire; Huib Trommel; Henk Jan Veldman (Discret. Math., 2000)

Forbidden subgraphs that imply hamiltonian-connectedness. - Hajo Broersma; Ralph J. Faudree; Andreas Huck; Huib Trommel; Henk Jan Veldman (J. Graph Theory, 2002)