@article{10_21136_AM_1983_104011,
     author = {Kop\'a\v{c}kov\'a, Marie},
     title = {On periodic solution of a nonlinear beam equation},
     journal = {Applications of Mathematics},
     pages = {108--115},
     publisher = {mathdoc},
     volume = {28},
     number = {2},
     year = {1983},
     doi = {10.21136/AM.1983.104011},
     mrnumber = {0695184},
     zbl = {0533.35003},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/AM.1983.104011/}
}