TY - JOUR AU - N. Levan TI - A non-spectral representation of shift semigroups. JO - Semigroup forum PY - 1993 SP - 381 EP - 388 VL - 47 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SF_1993__47_2_135288/ ID - SF_1993__47_2_135288 ER -