@article{ZNSL_2004_320_a6,
     author = {M. A. Lifshits},
     title = {Invariance principle in a~bilinear model with weak non-linearity},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {97--105},
     publisher = {mathdoc},
     volume = {320},
     year = {2004},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2004_320_a6/}
}