@article{ZNSL_1974_42_a16,
     author = {N. V. Zepelev},
     title = {On the {Reflection} {Coefficients} from the {``Weak''} {Boundaries} between {Media}},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {250--254},
     publisher = {mathdoc},
     volume = {42},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1974_42_a16/}
}