@article{GDZPPN002315149, title = {Deformations of Normal Surface Singularities with C* Action.}, journal = {Mathematische Annalen}, volume = {237}, year = {1978}, pages = {65-84}, zbl = {0351.14004}, url = {http://dml.mathdoc.fr/item/GDZPPN002315149} }
Pinkham, Henry. Deformations of Normal Surface Singularities with C* Action.. Mathematische Annalen, Tome 237 (1978) pp. 65-84. http://gdmltest.u-ga.fr/item/GDZPPN002315149/