Sochor, Antonín:
Constructibility and shiftings of view.
(English).Commentationes Mathematicae Universitatis Carolinae,
vol. 26
(1985),
issue 3,
pp. 477-498
Sochor, Antonín:
Notes on revealed classes.
(English).Commentationes Mathematicae Universitatis Carolinae,
vol. 26
(1985),
issue 3,
pp. 499-514