TY - JOUR AU - Trygve Johnsen TI - Multiplicities of solutions to some enumerative contact problems. JO - Mathematica Scandinavica PY - 1988 SP - 87 EP - 108 VL - 63 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MS2_1988__63_1_167043/ ID - MS2_1988__63_1_167043 ER -