@article{TRSPY_2013_282_a14,
     author = {Kosto V. Mitov and Nikolay M. Yanev},
     title = {Sevastyanov branching processes with non-homogeneous {Poisson} immigration},
     journal = {Informatics and Automation},
     pages = {181--194},
     year = {2013},
     volume = {282},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_2013_282_a14/}
}