@article{RO_2004__38_1_27_0,
     author = {Kallel, Najeh and Timoumi, Mohsen},
     title = {Subharmonic solutions of a nonconvex noncoercive hamiltonian system},
     journal = {RAIRO - Operations Research - Recherche Op\'erationnelle},
     pages = {27--37},
     publisher = {EDP-Sciences},
     volume = {38},
     number = {1},
     year = {2004},
     doi = {10.1051/ro:2004010},
     mrnumber = {2083970},
     zbl = {1108.34034},
     language = {en},
     url = {http://www.numdam.org/articles/10.1051/ro:2004010/}
}