@article{AL_1987_26_1_a2, author = {V. P. Dobritsa}, title = {Structural properties of computable classes of constructive}, journal = {Algebra i logika}, pages = {36--62}, publisher = {mathdoc}, volume = {26}, number = {1}, year = {1987}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/AL_1987_26_1_a2/} }