@article{AL_1994_33_6_a3,
     author = {R. Sh. Omanadze},
     title = {Relations between some reducibilities},
     journal = {Algebra i logika},
     pages = {681--688},
     year = {1994},
     volume = {33},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_1994_33_6_a3/}
}