@article{PORMA_1958__17_1_114798,
     author = {Capel, C.E. and Strother, W.L.},
     title = {Multi-valued functions and partial order},
     journal = {Portugaliae mathematica},
     pages = {41--47},
     publisher = {mathdoc},
     volume = {17},
     number = {1},
     year = {1958},
     mrnumber = {0101512},
     zbl = {0088.15001},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1958__17_1_114798/}
}