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@article{IVM_1987_4_a0, author = {A. V. Abanin}, title = {On the continuation and stability of weakly sufficient sets}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {3--10}, publisher = {mathdoc}, number = {4}, year = {1987}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1987_4_a0/} }
A. V. Abanin. On the continuation and stability of weakly sufficient sets. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 4 (1987), pp. 3-10. http://geodesic.mathdoc.fr/item/IVM_1987_4_a0/