TY - JOUR AU - A. Ragusa AU - G. Paxia AU - G. Raciti TI - On the Lüroth Semigroup of curves lying on a smooth quadric. JO - Manuscripta mathematica PY - 1992 SP - 225 EP - 246 VL - 75 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MM2_1992__75_4_155721/ ID - MM2_1992__75_4_155721 ER -