@article{MASLO_1990__40_1_a10,
     author = {Rusn\'ak, J\'an},
     title = {Constructions of lower and upper solutions for a nonlinear boundary value problem of the third order and their applications},
     journal = {Mathematica slovaca},
     pages = {101--110},
     publisher = {mathdoc},
     volume = {40},
     number = {1},
     year = {1990},
     mrnumber = {1094976},
     zbl = {0731.34016},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MASLO_1990__40_1_a10/}
}