TY - JOUR AU - Craig A. Sloss TI - The induced subgraph order on unlabelled graphs JO - The electronic journal of combinatorics PY - 2006 VL - 13 UR - http://geodesic.mathdoc.fr/articles/10.37236/1155/ DO - 10.37236/1155 ID - 10_37236_1155 ER -