@article{DAN_1970_194_6_a0,
     author = {D. A. Vladimirov and B. A. Efimov},
     title = {The power of extremally disconnected spaces and of complete {Boolean} algebras},
     journal = {Doklady Akademii Nauk},
     pages = {1247--1250},
     publisher = {mathdoc},
     volume = {194},
     number = {6},
     year = {1970},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1970_194_6_a0/}
}