WEAK DISPERSION-FREE STATES AND THE HIDDEN VARIABLES HYPOTHESISPTAK P.1983; JOURNAL OF MATHEMATICAL PHYSICS (NEW YORK); ISSN 0022-2488; USA; DA. 1983; VOL. 24; NO 4; PP. 839-840; BIBL. 13 REF.Article

APPLICATION DE LA RMN A L'ETUDE DES CONFORMATIONS.PTAK P.1975; INFORM. CHIM.; FR.; DA. 1975; NO 147; PP. 237-254 (12P.); BIBL. 41 REF.Article

ON EXTENSIONS OF UNIFORMLY CONTINUOUS BANACH-SPACE-VALUED MAPPINGSPTAK P.1979; COMMENT. MATH. UNIV. CAROLINAE; CSK; DA. 1979; VOL. 20; NO 1; PP. 101-105; BIBL. 8 REF.Article

LOGICS WITH GIVEN CENTERS AND STATE SPACESPTAK P.1983; PROCEEDINGS OF THE AMERICAN MATHEMATICAL SOCIETY; ISSN 0002-9939; USA; DA. 1983; VOL. 88; NO 1; PP. 106-109; BIBL. 7 REF.Article

REALCOMPACTNESS AND THE NOTION OF OBSERVABLEPTAK P.1981; J. LOND. MATH. SOC.; ISSN 0024-6107; GBR; DA. 1981; VOL. 23; NO 3; PP. 534-536; BIBL. 7 REF.Article

ON THE RADON-NIKODYM PROPERTY FOR SIGMA -CLASSESNAVARA M; PTAK P.1983; JOURNAL OF MATHEMATICAL PHYSICS (NEW YORK); ISSN 0022-2488; USA; DA. 1983; VOL. 24; NO 6; PP. 1450; BIBL. 2 REF.Article

ON STATES ON THE PRODUCT OF LOGICSMANASOVA V; PTAK P.1981; INT. J. THEOR. PHYS.; ISSN 0020-7748; GBR; DA. 1981; VOL. 20; NO 6; PP. 451-456; BIBL. 6 REF.Article

Extensions of states on logicsPTAK, P.Bulletin of the Polish academy of sciences. Mathematics. 1985, Vol 33, Num 9-10, pp 493-497Article

REGULARLY FULL LOGIES AND THE UNIQUENESS PROBLEM FOR OBSERVABLES = LOGIQUES REGULIEREMENT COMPLETES ET LE PROBLEME D'UNICITE POUR DES OBSERVABLESPTAK P; ROGALEWICZ V.1983; ANNALES DE L'INSTITUT HENRI POINCARE. SECTION A. PHYSIQUE THEORIQUE; ISSN 0020-2339; FRA; DA. 1983; VOL. 38; NO 1; PP. 69-74; ABS. FRE; BIBL. 7 REF.Article

ON COMPATIBILITY IN QUANTUM LOGICSBRABEC J; PTAK P.1982; FOUND. PHYS.; ISSN 0015-9018; USA; DA. 1982; VOL. 12; NO 2; PP. 207-212; BIBL. 8 REF.Article

P-measures on soft fuzzy σ-algebrasNAVARA, M; PTAK, P.Fuzzy sets and systems. 1993, Vol 56, Num 1, pp 123-126, issn 0165-0114Article

Quantum logics with the Radon-Nikodym propertyNAVARA, M; PTAK, P.Order (Dordrecht). 1988, Vol 4, Num 4, pp 387-395, issn 0167-8094Article

Enlargements of quantum logicsNAVARA, M; PTAK, P; ROGALEWICZ, V et al.Pacific journal of mathematics. 1988, Vol 135, Num 2, pp 361-369, issn 0030-8730Article

The path-connectedness in Z² and Z³ and classical topologiesKROPATSCH, W; PTAK, P.Lecture notes in computer science. 1998, pp 181-189, issn 0302-9743, isbn 3-540-64858-5Conference Paper