@article{ZNSL_1979_84_a5,
     author = {S. Yu. Dobrokhotov and V. P. Maslov},
     title = {Resonance fenomena in the nonlinear equation of a~proper semiconductor $h^2\Delta u=\operatorname{sh}u$},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {35--44},
     publisher = {mathdoc},
     volume = {84},
     year = {1979},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1979_84_a5/}
}