@article{CMUC_1991__32_2_a14,
     author = {Sgall, Ji\v{r}{\'\i}},
     title = {Forcing in the alternative set theory. {I}},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {323--337},
     publisher = {mathdoc},
     volume = {32},
     number = {2},
     year = {1991},
     mrnumber = {1137794},
     zbl = {0751.03025},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1991__32_2_a14/}
}