TY - JOUR AU - Tůma, Jiří TI - Representing lattices by homotopy groups of graphs JO - Commentationes Mathematicae Universitatis Carolinae PY - 1999 SP - 215 EP - 221 VL - 40 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/CMUC_1999__40_2_a2/ LA - en ID - CMUC_1999__40_2_a2 ER -