@article{DAN_1957_112_6_a15,
     author = {A. D. Kharkevich},
     title = {Multistage construction of non-blocking switching networks},
     journal = {Doklady Akademii Nauk},
     pages = {1043--1046},
     publisher = {mathdoc},
     volume = {112},
     number = {6},
     year = {1957},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1957_112_6_a15/}
}