@article{1250187231, author = {Husch, L.S.}, title = {Local algebraic invariants of $\Delta$-sets}, journal = {Rocky Mountain J. Math.}, volume = {2}, number = {4}, year = {1972}, pages = { 289-298}, language = {en}, url = {http://dml.mathdoc.fr/item/1250187231} }
Husch, L.S. Local algebraic invariants of $\Delta$-sets. Rocky Mountain J. Math., Tome 2 (1972) no. 4, pp. 289-298. http://gdmltest.u-ga.fr/item/1250187231/