TY - JOUR AU - Li, Chengzhi AU - Rousseau, Christiane TI - Codimension 2 Symmetric Homoclinic Bifurcations and Application to 1:2 Resonance JO - Canadian journal of mathematics PY - 1990 SP - 191 EP - 212 VL - 42 IS - 2 UR - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1990-011-2/ DO - 10.4153/CJM-1990-011-2 ID - 10_4153_CJM_1990_011_2 ER -