@article{ARM_2000__36_5_a26,
     author = {Rudolf, Boris},
     title = {Method of lower and upper solutions for a generalized boundary value problem},
     journal = {Archivum mathematicum},
     pages = {595--602},
     publisher = {mathdoc},
     volume = {36},
     number = {5},
     year = {2000},
     mrnumber = {1822829},
     zbl = {1090.34520},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ARM_2000__36_5_a26/}
}