@article{THSP_2008_14_4_a3,
     author = {Dmitrii Silvestrov},
     title = {Nonlinearly perturbed},
     journal = {Teori\^a slu\v{c}ajnyh processov},
     pages = {129--164},
     year = {2008},
     volume = {14},
     number = {4},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/THSP_2008_14_4_a3/}
}