TY - JOUR AU - B. P. Harlamov TI - Additive functionals and a~time change which preserves the semi-Markov property of a~process JO - Zapiski Nauchnykh Seminarov POMI PY - 1980 SP - 203 EP - 216 VL - 97 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ZNSL_1980_97_a20/ LA - ru ID - ZNSL_1980_97_a20 ER -