TY - JOUR AU - Yvan Le Borgne AU - Jean-François Marckert TI - Directed animals and gas models revisited JO - The electronic journal of combinatorics PY - 2007 VL - 14 UR - http://geodesic.mathdoc.fr/articles/10.37236/989/ DO - 10.37236/989 ID - 10_37236_989 ER -