[1] DVUREČENSKIJ A., PULMANNOVÁ S.: On the sum of observables in a logic. Math. Slovaca 30, 1980, 393-399. MR 0595300 | Zbl 0454.03030

[2] HARMAN B.: Niektore otazky ergodickej teorie. Kandidátska dizertačná práca, Liptovský Mikuláš, 1982.

[3] HARMAN B., RIEČAN B.: Martingale convergence theorem in quantum mechanics. Trans. of the Ninth Prague Conf., 1982, Praha.

[4] MULLIKIN H., GUDDER S. P.: Measure theoretic convergences of observables and operators. J. Math. Phys. 14, 1973, 234-242. MR 0334747

[5] NÁNÁSIOVÁ O., PULMANNOVÁ S.: Relative conditional expectation on a logic. Apl. Mat. 30, 1985, 332-350. MR 0806831

[6] NEUBRUNN T., RIEČAN B.: Miera a integral. Veda, Bratislava 1981. MR 0657765

[7] NEUBRUNN T., PULMANNOVÁ S.: On compatibility in quantum logics. Acta. Math. Univ. Com., 1983, 153-167. MR 0740744 | Zbl 0539.03045

[8] PULMANNOVÁ S.: Compatibility and partial compatibility in quantum logics. Ann. Inst. H. Poincare, 34, 1981, 391-403. MR 0625170

[9] VARADARAJAN V. S.: Geometry of Quantum Theory, vol. 1. New Jersey, Princeton 1968.

[10] VARADARAJAN V. S.: Probability in physics and a theorem on simultaneous observability. Commun. Pure and Appl. Math. 15, 1962, 189-217. MR 0163616 | Zbl 0109.44705