@article{AL_2019_58_3_a0,
     author = {N. A. Bazhenov and B. S. Kalmurzaev},
     title = {Weakly precomplete equivalence relations in the {Ershov} hierarchy},
     journal = {Algebra i logika},
     pages = {297--319},
     publisher = {mathdoc},
     volume = {58},
     number = {3},
     year = {2019},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_2019_58_3_a0/}
}