1. Averintsev, M. B.: A way of describing random fields with discrete parameter (in Russian). Problemy Pereda?i Informacii, 6, 100?109 (1970).
2. Averintsev, M. B.: Description of Markov random fields by conditional Gibbs distributions (in Russian). Teor. Ver. i ee Prim. 17, 2, 21?35 (1972).
3. Dobru?in, R. L.: Gibbsian random fields for lattice systems with pair interactions. Functional Anal. Appl. 2, 281?301 (1968).
4. Dobru?in, R. L.: Description of a random field by means of conditional probabilities and conditions of its regularity. Theor. Probability Appl. 13, 197?224 (1968).
5. Dunford, N. and Schwartz, J.T.: Linear Operators, I. New York: Interscience 1958.