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@article{MS2_1960__8_165740, author = {Th. Skolem}, title = {A {Set} {Theory} {Based} on a {Certain} {3-Valued} {Logic.}}, journal = {Mathematica Scandinavica}, pages = {127--136}, publisher = {mathdoc}, volume = {8}, year = {1960}, zbl = {0096.24301}, url = {http://geodesic.mathdoc.fr/item/MS2_1960__8_165740/} }
Th. Skolem. A Set Theory Based on a Certain 3-Valued Logic.. Mathematica Scandinavica, Tome 8 (1960), pp. 127-136. http://geodesic.mathdoc.fr/item/MS2_1960__8_165740/