TY - JOUR AU - Harrivel, Dikanaina TI - Planar binary trees and perturbative calculus of observables in classical field theory JO - Annales de l'I.H.P. Analyse non linéaire PY - 2006 SP - 891 EP - 909 VL - 23 IS - 6 PB - Elsevier UR - http://www.numdam.org/articles/10.1016/j.anihpc.2005.09.006/ DO - 10.1016/j.anihpc.2005.09.006 LA - en ID - AIHPC_2006__23_6_891_0 ER -