TY  - DATA
AU  - Epstein, Richard L.
TI  - Minimal degrees of unsolvability and the full approximation construction 
T2  - Memoirs of the American Mathematical Society, 
SN  - 9781470406448 (online)
PY  - 1975///
CY  - Providence
PB  - American Mathematical Society
UR  - http://www.ams.org/memo/0162
ER  -