@article{DAN_1962_143_5_a11,
     author = {I. I. Ogievetskii},
     title = {On the problem of effectiveness and non-effectiveness of regular matrices},
     journal = {Doklady Akademii Nauk},
     pages = {1050--1052},
     publisher = {mathdoc},
     volume = {143},
     number = {5},
     year = {1962},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1962_143_5_a11/}
}