On joint distributions of observables Anatolij Dvurečenskij, Sylvia Pulmannová (1982) Mathematica Slovaca
On the individual ergodic theorem on a logic Anatolij Dvurečenskij, Beloslav Riečan (1980) Commentationes Mathematicae Universitatis Carolinae
Ordering of observables and characterization of conditional expectation Oľga Nánásiová (1987) Mathematica Slovaca