@article{ZNSL_1984_138_a9,
     author = {Yu. G. Safarov},
     title = {Asymptotics of eigenvalues of transmissions problems},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {137--145},
     publisher = {mathdoc},
     volume = {138},
     year = {1984},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1984_138_a9/}
}