@article{GDZPPN002239280, title = {The plurigenera of Gorenstein surface singularities.}, journal = {Manuscripta mathematica}, volume = {94}, year = {1997}, pages = {187-194}, zbl = {0902.14025}, url = {http://dml.mathdoc.fr/item/GDZPPN002239280} }
Okuma, Tomohiro. The plurigenera of Gorenstein surface singularities.. Manuscripta mathematica, Tome 94 (1997) pp. 187-194. http://gdmltest.u-ga.fr/item/GDZPPN002239280/