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@article{MMO_1965_13_a2, author = {G. I. Kats}, title = {Annular groups and the principle of {duality.~II}}, journal = {Trudy Moskovskogo matemati\v{c}eskogo ob\^{s}estva}, pages = {84--113}, publisher = {mathdoc}, volume = {13}, year = {1965}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MMO_1965_13_a2/} }
G. I. Kats. Annular groups and the principle of duality.~II. Trudy Moskovskogo matematičeskogo obŝestva, Trudy Moskovskogo Matematicheskogo Obshchestva, Tome 13 (1965), pp. 84-113. http://geodesic.mathdoc.fr/item/MMO_1965_13_a2/