@article{DAN_1993_332_1_a2,
     author = {V. N. Koshelev},
     title = {On the problem of divisibility of sources and spaces},
     journal = {Doklady Akademii Nauk},
     pages = {12--14},
     publisher = {mathdoc},
     volume = {332},
     number = {1},
     year = {1993},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1993_332_1_a2/}
}