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@article{MV_1967_19_2_a11, author = {J. C. Abbott}, title = {Semi-boolean algebra}, journal = {Matemati\v{c}ki vesnik}, pages = {177 }, publisher = {mathdoc}, volume = {19}, number = {2}, year = {1967}, url = {http://geodesic.mathdoc.fr/item/MV_1967_19_2_a11/} }
J. C. Abbott. Semi-boolean algebra. Matematički vesnik, Tome 19 (1967) no. 2, p. 177 . http://geodesic.mathdoc.fr/item/MV_1967_19_2_a11/