@article{TRSPY_1981_158_a1,
     author = {V. A. Vatutin},
     title = {A~local limit theorem for critical {Bellman--Harris} branching processes},
     journal = {Informatics and Automation},
     pages = {9--30},
     publisher = {mathdoc},
     volume = {158},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_1981_158_a1/}
}