@article{CLTM_1995_1995_1_a21,
     author = {Timoumi, M. and Trad, A.},
     title = {Soluciones peri\'odicas de un sistema hamiltoniano no coercitivo.},
     journal = {Collectanea mathematica},
     pages = {255-261},
     publisher = {mathdoc},
     volume = {46},
     number = {3},
     year = {1995},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CLTM_1995_1995_1_a21/}
}