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@article{CM_1978__37_1_51_0, author = {Looijenga, Eduard}, title = {The discriminant of a real simple singularity}, journal = {Compositio Mathematica}, pages = {51--62}, publisher = {Sijthoff et Noordhoff International Publishers}, volume = {37}, number = {1}, year = {1978}, mrnumber = {501918}, zbl = {0407.14001}, language = {en}, url = {http://geodesic.mathdoc.fr/item/CM_1978__37_1_51_0/} }
Looijenga, Eduard. The discriminant of a real simple singularity. Compositio Mathematica, Tome 37 (1978) no. 1, pp. 51-62. http://geodesic.mathdoc.fr/item/CM_1978__37_1_51_0/