@article{IVM_1970_9_a2,
     author = {M. V. Buslaeva},
     title = {Trace formulae for nonspectral singularities},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {14--20},
     publisher = {mathdoc},
     number = {9},
     year = {1970},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1970_9_a2/}
}