@article{PORMA_1948__7_2_114661,
     author = {Church, Alonzo},
     title = {Conditioned disjunction as a primitive connective for the propositional calculus},
     journal = {Portugaliae mathematica},
     pages = {87--90},
     publisher = {mathdoc},
     volume = {7},
     number = {2},
     year = {1948},
     mrnumber = {0028253},
     zbl = {0034.29101},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1948__7_2_114661/}
}