@article{ZNSL_1980_97_a20,
     author = {B. P. Harlamov},
     title = {Additive functionals and a~time change which preserves the {semi-Markov} property of a~process},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {203--216},
     publisher = {mathdoc},
     volume = {97},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1980_97_a20/}
}