@article{MASLO_1985__35_3_a12,
     author = {Andres, Jan},
     title = {Periodic boundary value problem for certain nonlinear differential equations of the third order},
     journal = {Mathematica slovaca},
     pages = {305--309},
     publisher = {mathdoc},
     volume = {35},
     number = {3},
     year = {1985},
     mrnumber = {808366},
     zbl = {0591.34037},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MASLO_1985__35_3_a12/}
}