@article{GDZPPN002317575, title = {Deformation von Gorenstein-Singularit\"aten der Kodimension 3.}, journal = {Mathematische Annalen}, volume = {243}, year = {1979}, pages = {201-208}, zbl = {0426.14004}, url = {http://dml.mathdoc.fr/item/GDZPPN002317575} }
Waldi, Rolf. Deformation von Gorenstein-Singularitäten der Kodimension 3.. Mathematische Annalen, Tome 243 (1979) pp. 201-208. http://gdmltest.u-ga.fr/item/GDZPPN002317575/