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@article{MS2_1988__63_1_167043, author = {Trygve Johnsen}, title = {Multiplicities of solutions to some enumerative contact problems.}, journal = {Mathematica Scandinavica}, pages = {87--108}, publisher = {mathdoc}, volume = {63}, number = {1}, year = {1988}, zbl = {0688.14051}, url = {http://geodesic.mathdoc.fr/item/MS2_1988__63_1_167043/} }
Trygve Johnsen. Multiplicities of solutions to some enumerative contact problems.. Mathematica Scandinavica, Tome 63 (1988) no. 1, pp. 87-108. http://geodesic.mathdoc.fr/item/MS2_1988__63_1_167043/