@article{IVM_1986_6_a23,
     author = {S. B. Yakubovich},
     title = {A general approach to the theory of integral transforms with respect to an index},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {77--79},
     year = {1986},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1986_6_a23/}
}