@article{105099, author = {Petr Vop\v enka}, title = {General theory of $\nabla$-models}, journal = {Commentationes Mathematicae Universitatis Carolinae}, volume = {008}, year = {1967}, pages = {145-170}, zbl = {0162.01701}, mrnumber = {0214460}, language = {en}, url = {http://dml.mathdoc.fr/item/105099} }
Vopěnka, Petr. General theory of $\nabla$-models. Commentationes Mathematicae Universitatis Carolinae, Tome 008 (1967) pp. 145-170. http://gdmltest.u-ga.fr/item/105099/
The limits of sheaves and applications on constructions of models, Bull. Acad. Polon. Sci., sér. mat., astr. et phys., XIII (1965), 189-192. (1965) | MR 0182570
On $\nabla $-model of set theory, ibid., 267-272. | MR 0182571
Properties of $\nabla $ -model, ibid., 441-444. | MR 0189984
$\nabla $ -models in which the generalized continuum hypothesis does not hold, ibid., XIV (1966), 95-99. (1966) | MR 0200142
Permutation submodels of the model $\nabla $, ibid., XIII (1965), 611-614. (1965) | MR 0194320
Some permutation submodels of the model $\nabla $, ibid., XIV (1966), 1-7. (1966) | MR 0194321
Limits of sheaves over compact Hausdorff extremally disconnected spaces, ibid. (in press).
Concerning the $\nabla $ -models of set theory, ibid. (in press).
Modeli teorii množestv, (in Russian), Zeitschrift f. Math. Logik und Grundlagen der Math. 8 (1962), 281-292. (1962) | MR 0146085
Die durch die schwach inneren Relationen gegebenen Modelle der Mengenlehre, ibid., 10 (1964), 151-157. (1964) | MR 0164888