On the hamiltonian index and the radius of a graph.

Marko Lovrecic Sarazin On the hamiltonian index and the radius of a graph. 197-202 1998 182 Discrete Mathematics 1-3 http://dx.doi.org/10.1016/S0012-365X(97)00140-4 db/journals/dm/dm182.html#Sarazin98