@article{IVM_2006_9_a4,
     author = {D. I. Ivanov},
     title = {Weakly implicative selector sets},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {29--33},
     publisher = {mathdoc},
     number = {9},
     year = {2006},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_2006_9_a4/}
}