@article{MZM_1997_61_6_a17,
     author = {V. D. Solov'ev},
     title = {Initial segments of effectively finite orders},
     journal = {Matemati\v{c}eskie zametki},
     pages = {950--953},
     year = {1997},
     volume = {61},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1997_61_6_a17/}
}