TY - JOUR AU - K.D. jr. Magill TI - A characterization of the arc by means of the C-index of itssemigroup. JO - Semigroup forum PY - 1993 SP - 396 EP - 398 VL - 47 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SF_1993__47_2_135291/ ID - SF_1993__47_2_135291 ER -