@article{AL_1986_25_3_a3,
     author = {E. G. Nikiforova},
     title = {Some modifications of iterated {Kleene} computability},
     journal = {Algebra i logika},
     pages = {292--314},
     publisher = {mathdoc},
     volume = {25},
     number = {3},
     year = {1986},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_1986_25_3_a3/}
}