@article{DAN_1957_116_6_a5,
     author = {A. M. Molchanov},
     title = {Finite sets and the scalar product},
     journal = {Doklady Akademii Nauk},
     pages = {920--922},
     publisher = {mathdoc},
     volume = {116},
     number = {6},
     year = {1957},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1957_116_6_a5/}
}