中国科学院数学与系统科学研究院期刊网
AMS
Codimension-4 Resonant Homoclinic Bifurcations with Orbit Flips and Inclination Flips
Tian Si ZHANG, De Ming ZHU
Acta Mathematica Sinica . 2015, (8): 1359 -1366 .  DOI: 10.1007/s10114-015-2456-0