@article{JRAM_1984__350_152641, author = {Uwe Storch}, title = {Die {Picard-Zahlen} der {Singularit\"aten} ... = 0}, journal = {Journal f\"ur die reine und angewandte Mathematik}, pages = {188--202}, publisher = {mathdoc}, volume = {350}, year = {1984}, zbl = {0527.14009}, url = {http://geodesic.mathdoc.fr/item/JRAM_1984__350_152641/} }