TY - JOUR AU - Israel Vainsencher AU - Daniel F. Coray TI - Enumerative formulae for ruled cubic surfaces and rational quintic curves. JO - Commentarii mathematici Helvetici PY - 1986 SP - 501 EP - 518 VL - 61 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/CMH_1986__61_140066/ ID - CMH_1986__61_140066 ER -