TY - JOUR AU - G.J. Székely TI - Algebraic dimension of semigroups with application to invariant measures. JO - Semigroup forum PY - 1979 SP - 185 EP - 187 VL - 17 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SF_1979__17_134317/ ID - SF_1979__17_134317 ER -