Masahiro Kumabe. Every n-Generic Degree Is a Minimal Cover of an n-Generic Degree. Journal of Symbolic Logic, 58(1):219-231, 1993.
@article{Kumabe93:0, title = {Every n-Generic Degree Is a Minimal Cover of an n-Generic Degree}, author = {Masahiro Kumabe}, year = {1993}, researchr = {https://researchr.org/publication/Kumabe93%3A0}, cites = {0}, citedby = {0}, journal = {Journal of Symbolic Logic}, volume = {58}, number = {1}, pages = {219-231}, }