@article{AIHPC_2019__36_7_1941_0,
     author = {Marde\v{s}i\'c, Pavao and Novikov, Dmitry and Ortiz-Bobadilla, Laura and Pontigo-Herrera, Jessie},
     title = {Infinite orbit depth and length of {Melnikov} functions},
     journal = {Annales de l'I.H.P. Analyse non lin\'eaire},
     pages = {1941--1957},
     publisher = {Elsevier},
     volume = {36},
     number = {7},
     year = {2019},
     doi = {10.1016/j.anihpc.2019.07.003},
     mrnumber = {4020529},
     zbl = {1435.37086},
     language = {en},
     url = {http://www.numdam.org/articles/10.1016/j.anihpc.2019.07.003/}
}