@article{IVM_1970_10_a10,
     author = {M. A. Fridman},
     title = {$TVV$-operations},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {81--91},
     publisher = {mathdoc},
     number = {10},
     year = {1970},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1970_10_a10/}
}