@article{TIMM_2014_20_1_a27,
     author = {A. G. Chentsov},
     title = {Ultrafilters of measurable spaces and their application in extension constructions},
     journal = {Trudy Instituta matematiki i mehaniki},
     pages = {285--304},
     year = {2014},
     volume = {20},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TIMM_2014_20_1_a27/}
}