@article{MASLO_1999_49_4_a6,
     author = {Marti\v{s}ovit\v{s}, Ilja},
     title = {Existence of positive solutions to vector boundary value problems. {I}},
     journal = {Mathematica slovaca},
     pages = {453--479},
     year = {1999},
     volume = {49},
     number = {4},
     mrnumber = {1719739},
     zbl = {0952.34017},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MASLO_1999_49_4_a6/}
}