TY - JOUR AU - Hulpke, Alexander TI - Block systems of a Galois group. JO - Experimental mathematics PY - 1995 SP - 1 EP - 9 VL - 4 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/EXMA_1995__4_1_226961/ LA - en ID - EXMA_1995__4_1_226961 ER -