@article{ZNSL_1988_173_a3,
     author = {M. A. Bisyarin},
     title = {The nonlinear {Schr\"odinger} equation with variable coefficients: concentrated solution and its break},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {42--47},
     publisher = {mathdoc},
     volume = {173},
     year = {1988},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1988_173_a3/}
}