@article{GDZPPN002104881, title = {Threefolds and deformations of surface singularities.}, journal = {Inventiones mathematicae}, volume = {93}, year = {1988}, pages = {299-338}, zbl = {0642.14008}, url = {http://dml.mathdoc.fr/item/GDZPPN002104881} }
Shepherd-Barron, N.I.; Kollár, J. Threefolds and deformations of surface singularities.. Inventiones mathematicae, Tome 93 (1988) pp. 299-338. http://gdmltest.u-ga.fr/item/GDZPPN002104881/