@article{1070910528,
author = {Cordaro, Giuseppe},
title = {Three periodic solutions to an eigenvalue problem for a class of
second-order Hamiltonian systems},
journal = {Abstr. Appl. Anal.},
volume = {2003},
number = {7},
year = {2003},
pages = { 1037-1045},
language = {en},
url = {http://dml.mathdoc.fr/item/1070910528}
}
Cordaro, Giuseppe. Three periodic solutions to an eigenvalue problem for a class of second-order Hamiltonian systems. Abstr. Appl. Anal., Tome 2003 (2003) no. 7, pp. 1037-1045. http://gdmltest.u-ga.fr/item/1070910528/