@article{PORMA_1964__23_3_114926,
     author = {Abian, Alexander},
     title = {On the equipollence of sets},
     journal = {Portugaliae mathematica},
     pages = {147--156},
     publisher = {mathdoc},
     volume = {23},
     number = {3},
     year = {1964},
     mrnumber = {0188085},
     zbl = {0158.26801},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1964__23_3_114926/}
}