@article{10_4064_am_7_4_371_381,
     author = {W. Woyczy\'nski},
     title = {Drgania swobodne pewnego uk{\l}adu z adiabatyczn\k{a} charakterystyk\k{a} si{\l} spr\k{e}\.zystych},
     journal = {Applicationes Mathematicae},
     pages = {371--381},
     publisher = {mathdoc},
     volume = {7},
     number = {4},
     year = {1963},
     doi = {10.4064/am-7-4-371-381},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/am-7-4-371-381/}
}