TY  - BOOK
AU  - Goodman G S
AU  - Johansen S
TI  - Application of the operational time in the theory of non-stationary Markov processes on a countable state space
U1  - 519.233 
PY  - 1970///
CY  - Copenhagen
PB  - Copenhagen Univ
KW  - Non stationary Markov process
KW  - Operational time
ER  -