[1] GUDDER S. P.: Quantum pгobability spaces. Proc. Ameг. Math. Soc. 21, 1969, 296-302. MR 0243793

[2] GUDDER S. P.: Generalized measuгe theory. Foundations of Physics, Vol. 3, No. 3, September 1973, 399-411. MR 0522332

[3] NEUBRUNN T.: A note on quantum probability spaces. Proc. Ameг. Math. Soc. 25, 1970, 672-675. MR 0259056 | Zbl 0208.43402

[4] SUPPES P.: The probabilistic argument foг a nonclassical logic of quantum mechanics. Philos. Sci. 33, 1966, 14-21. MR 0215575

[5] VARADARAJAN V.: Geometry of Quantum Theory, Vol. 1. Van Nostгand, Princeton N. J., 1968. MR 0471674