Serikzhan A. Badaev, Mustafa Manat, Andrea Sorbi. Friedberg numberings in the Ershov hierarchy. Arch. Math. Log., 54(1-2):59-73, 2015. [doi]
@article{BadaevMS15,
title = {Friedberg numberings in the Ershov hierarchy},
author = {Serikzhan A. Badaev and Mustafa Manat and Andrea Sorbi},
year = {2015},
doi = {10.1007/s00153-014-0402-y},
url = {http://dx.doi.org/10.1007/s00153-014-0402-y},
researchr = {https://researchr.org/publication/BadaevMS15},
cites = {0},
citedby = {0},
journal = {Arch. Math. Log.},
volume = {54},
number = {1-2},
pages = {59-73},
}