[2] Dvurečenskij A., Pulmannová S.:
New Trends in Quantum Structures. Kluwer Academic Publishers, Dordrecht – Boston – London and Ister Science, Bratislava 2000
MR 1861369
[4] Gudder S. P.:
D-algebras. Found. Phys. 26 (1996), 813–822
MR 1407184
[5] Hájek P.:
Mathematics of Fuzzy Logic. Kluwer Academic Publishers, Dordrecht 1998
MR 1900263
[6] Hedlíková J., Pulmannová S.:
Generalized difference posets and orthoalgebras. Acta Math. Univ. Comenianae 45 (1996), 247–279
MR 1451174 |
Zbl 0922.06002
[7] Janowitz M. F.:
A note on generalized orthomodular lattices. J. Natur. Sci. Math. 8 (1968), 89–94
MR 0231762 |
Zbl 0169.02104
[9] Jenča G., Riečanová Z.: On sharp elements in lattice ordered effect algebras. BUSEFAL 80 (1999), 24–29
[15] Riečanová Z.: Compatibilty and central elements in effect algebras. Tatra Mt. Math. Publ. 16 (1999), 151–158
[17] Riečanová Z.:
Orthogonal sets in effect algebras. Demonstratio Mathematica 34 (2001), 525–532
MR 1853730
[18] Wilce A.:
Perspectivity and congruence in partial Abelian semigroups. Math. Slovaca 48 (1998), 117–135
MR 1647650 |
Zbl 0938.03094