@article{AL_1978_17_1_a4,
     author = {V. L. Mikheev},
     title = {A hierarchy of independent $\omega $-processions of cosimple},
     journal = {Algebra i logika},
     pages = {56--78},
     publisher = {mathdoc},
     volume = {17},
     number = {1},
     year = {1978},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_1978_17_1_a4/}
}