@article{IVM_1969_9_a1,
     author = {M. Sh. Birman and M. Z. Solomyak},
     title = {Remarks on the nuclearity of integral operators and the boundedness of pseudodifferential operators},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {11--17},
     year = {1969},
     number = {9},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1969_9_a1/}
}