1. The asymptotic behaviour of semi-Markov processes with a decomposable set of states;Gusak;Theor. Probab. Math. Statist.,1976
2. Enlarging of complex systems;Korolyuk;Cybernetics,1977
3. Mathematical Foundation of the State Lumping of Large Systems;Korolyuk,1993
4. Asymptotic enlargement of the states of random processes;Anisimov;Cybernetics,1973
5. Switching Processes in Queueing Models;Anisimov,2008