@article{ZNSL_1985_148_a7,
     author = {N. S. Grigor'eva},
     title = {She two-scales expansions method for weak irregular ocean waveguides perturbed by current},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {68--78},
     publisher = {mathdoc},
     volume = {148},
     year = {1985},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1985_148_a7/}
}