@article{DAN_1972_204_2_a6,
     author = {N. N. Kuznetsov},
     title = {Asymptotics of a noncommutative difference approximation to the wave equation},
     journal = {Doklady Akademii Nauk},
     pages = {285--287},
     publisher = {mathdoc},
     volume = {204},
     number = {2},
     year = {1972},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1972_204_2_a6/}
}