@article{DAN_1994_338_2_a9,
     author = {I. G. Fikhtengol'ts},
     title = {Characteristic vector of space},
     journal = {Doklady Akademii Nauk},
     pages = {180--183},
     publisher = {mathdoc},
     volume = {338},
     number = {2},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1994_338_2_a9/}
}