@article{ZNSL_1983_128_a9,
     author = {Ya. V. Kurylev},
     title = {On the nonlinear analogue of the {WKB} method and the method of the averaged {lagrangian.~II}},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {95--101},
     publisher = {mathdoc},
     volume = {128},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1983_128_a9/}
}