@article{ADM_2006_4_a5,
     author = {O. I. Protasova},
     title = {Pseudodiscrete balleans},
     journal = {Algebra and discrete mathematics},
     pages = {81--92},
     year = {2006},
     number = {4},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ADM_2006_4_a5/}
}