@article{DAN_1976_227_4_a7,
     author = {L. A. Levin},
     title = {Various measures of complexity for finite objects (axiomatic description)},
     journal = {Doklady Akademii Nauk},
     pages = {804--807},
     publisher = {mathdoc},
     volume = {227},
     number = {4},
     year = {1976},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1976_227_4_a7/}
}