@article{ZNSL_2001_278_a1,
     author = {Ya. I. Belopol'skaya},
     title = {Nonlinear equations in diffusion theory},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {15--35},
     year = {2001},
     volume = {278},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2001_278_a1/}
}