Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_2006_80_5_a12, author = {A. Torgasev and M. Petrovi\'c}, title = {On the {Laplacian} spectrum of an infinite graph}, journal = {Matemati\v{c}eskie zametki}, pages = {773--785}, publisher = {mathdoc}, volume = {80}, number = {5}, year = {2006}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_2006_80_5_a12/} }
A. Torgasev; M. Petrović. On the Laplacian spectrum of an infinite graph. Matematičeskie zametki, Tome 80 (2006) no. 5, pp. 773-785. http://geodesic.mathdoc.fr/item/MZM_2006_80_5_a12/