Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MAT_1965_9_3_a0, author = {M. Artin}, title = {Some numerical criteria for contractability of curves on algebraic surfaces}, journal = {Matematika}, pages = {3--14}, publisher = {mathdoc}, volume = {9}, number = {3}, year = {1965}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MAT_1965_9_3_a0/} }
M. Artin. Some numerical criteria for contractability of curves on algebraic surfaces. Matematika, Tome 9 (1965) no. 3, pp. 3-14. http://geodesic.mathdoc.fr/item/MAT_1965_9_3_a0/