@article{ZNSL_1980_98_a3,
     author = {M. Sh. Birman},
     title = {On the quasi-classical spectral asymptotics of one class of integral operators},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {22--32},
     publisher = {mathdoc},
     volume = {98},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1980_98_a3/}
}