@article{CRMATH_2005__340_8_587_0,
     author = {Caubergh, Magdalena and Dumortier, Freddy and Roussarie, Robert},
     title = {Alien limit cycles near a {Hamiltonian} 2-saddle cycle},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {587--592},
     publisher = {Elsevier},
     volume = {340},
     number = {8},
     year = {2005},
     doi = {10.1016/j.crma.2005.03.009},
     language = {en},
     url = {http://www.numdam.org/articles/10.1016/j.crma.2005.03.009/}
}