Preprinti IMFM

Avtor: T. Valla

1001: Zdeněk Dvořák, Riste Škrekovski, T. Valla: Planar graphs of odd-girth at least 9 are homomorphic to Petersen graph, 44 (2006)

929: Zdeněk Dvořák, Riste Škrekovski, T. Valla: Four gravity results, 42 (2004)