Occupation times for nonhomogeneous Markov chains with discrete time
1978 ◽
Vol 7
(2)
◽
pp. 131-139
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1971 ◽
Vol 8
(02)
◽
pp. 381-390
◽
1984 ◽
Vol 27
(5)
◽
pp. 3022-3038
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