Nonhomogeneous stochastic semigroups
English version (Springer): Ukrainian Mathematical Journal 33 (1981), no. 4, pp 333-338.
Citation Example: Butsan G. P., Butsan S. P. Nonhomogeneous stochastic semigroups // Ukr. Mat. Zh. - 1981. - 33, № 4. - pp. 437–443.
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