@article{MMO_1967_17_a0,
     author = {I. S. Ivanov},
     title = {Free $T$-sums of multioperator sfields},
     journal = {Trudy Moskovskogo matemati\v{c}eskogo ob\^{s}estva},
     pages = {3--44},
     publisher = {mathdoc},
     volume = {17},
     year = {1967},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MMO_1967_17_a0/}
}