On extensions of $\sigma$-fields of sets
Acta Universitatis Carolinae. Mathematica et Physica, Tome 34 (1993) no. 2, pp. 47-49.
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@article{AUCMP_1993__34_2_a6, author = {Grzegorek, E.}, title = {On extensions of $\sigma$-fields of sets}, journal = {Acta Universitatis Carolinae. Mathematica et Physica}, pages = {47--49}, publisher = {mathdoc}, volume = {34}, number = {2}, year = {1993}, mrnumber = {1282965}, zbl = {0810.28001}, language = {en}, url = {https://geodesic-test.mathdoc.fr/item/AUCMP_1993__34_2_a6/} }
Grzegorek, E. On extensions of $\sigma$-fields of sets. Acta Universitatis Carolinae. Mathematica et Physica, Tome 34 (1993) no. 2, pp. 47-49. https://geodesic-test.mathdoc.fr/item/AUCMP_1993__34_2_a6/