@article{GDZPPN002445751,
title = {Properties of -p . p for Gorenstein surface singularities.},
journal = {Mathematische Zeitschrift},
volume = {221},
year = {1996},
pages = {411-420},
zbl = {0901.14006},
url = {http://dml.mathdoc.fr/item/GDZPPN002445751}
}
Ganter, Frieda M. Properties of -p . p for Gorenstein surface singularities.. Mathematische Zeitschrift, Tome 221 (1996) pp. 411-420. http://gdmltest.u-ga.fr/item/GDZPPN002445751/