[1] VARADARAJAN V. S.: 
Geometry of Quantum Theory. Vol. I, D. Van Nostrand Company, Princeton, New Jersey 1968. 
MR 0471674 | 
Zbl 0155.56802 
[2] RIEČAN B., DVUREČENSKIJ A.: On randomnes and fuzzinnes. In: Progress in fuzzy sets in Europe, Warsaw, 1986.
[3] RIEČAN B.: A new approach to some notions of statistical quantum mechanics. BUSEFAL, 35, 1988, 4-6.
[4] PIASECKI K.: On extension of fuzzy P-measure generated by outer measure. In: Proc. and Napoli Meeting on the mathematics of fuzzy systems 1985, 119-135.
[6] RIEČAN B.: 
Abstract entropy. Acta Fac. Rer. Nat. Univ. Comen. 29, 1973, 55-67. 
MR 0355005 
[7] GROŠEK O.: 
Entropia na algebraičeskich strukturách. Math. Slovaca 29, 1979, 411-424. 
MR 0562010 
[8] PALM G.: 
Entropie und Generatoren in dynamischen Verbänden. Z. Wahr. und verw. Geb. 37, 1976, 27-45. 
MR 0409768 
[9] KOMORNÍK J., KOMORNÍKOVA M.: 
Comparing measure theoretic entropy with topological entropy for noncompact spaces. Acta Math. Univ. Comen. 42-43, 1983-1985. 
MR 0740747 | 
Zbl 0529.54015 
[10] MALIČKÝ P., RIEČAN B.: 
On the entropy of dynamical systems. In: Ergodic theory and related topics II, to appear. 
MR 0931138 | 
Zbl 0643.58008