中国科学院数学与系统科学研究院期刊网
Brake Orbits of First Order Convex Hamiltonian Systems with Particular Anisotropic Growth
Xiao Fei ZHANG, Chun Gen LIU
Acta Mathematica Sinica . 2020, (2): 171 -178 .  DOI: 10.1007/s10114-020-9043-8