@article{GDZPPN002227177, title = {Cotangent Functors of Curve Singularities.}, journal = {Manuscripta mathematica}, volume = {55}, year = {1986}, pages = {307-342}, zbl = {0599.14025}, url = {http://dml.mathdoc.fr/item/GDZPPN002227177} }
Herzog, Jürgen; Waldi, Rolf. Cotangent Functors of Curve Singularities.. Manuscripta mathematica, Tome 55 (1986) pp. 307-342. http://gdmltest.u-ga.fr/item/GDZPPN002227177/