TY - JOUR AU - Jakob Jonsson TI - Hard squares with negative activity on cylinders with odd circumference JO - The electronic journal of combinatorics PY - 2009 VL - 16 IS - 2 UR - http://geodesic.mathdoc.fr/articles/10.37236/71/ DO - 10.37236/71 ID - 10_37236_71 ER -