@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/}
}