TY - JOUR AU - Schwarz, Štefan TI - The Euler-Fermat theorem for the semigroup of circulant Boolean matrices JO - Czechoslovak Mathematical Journal PY - 1980 SP - 135 EP - 141 VL - 30 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1980.101663/ DO - 10.21136/CMJ.1980.101663 LA - en ID - 10_21136_CMJ_1980_101663 ER -