TY - JOUR AU - Kaufmann, Ralph M AU - Livernet, Muriel AU - Penner, R C TI - Arc operads and arc algebras JO - Geometry & topology PY - 2003 SP - 511 EP - 568 VL - 7 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.2140/gt.2003.7.511/ DO - 10.2140/gt.2003.7.511 ID - GT_2003_7_1_a14 ER -