@article{MZM_1993_53_6_a10,
     author = {I. S. Rakhimov},
     title = {Critical branching processes with infinite variance and increasing immigration},
     journal = {Matemati\v{c}eskie zametki},
     pages = {97--107},
     publisher = {mathdoc},
     volume = {53},
     number = {6},
     year = {1993},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1993_53_6_a10/}
}