TY  - BOOK
AU  - Loeckx J
TI  - Computability and decidability: an introduction for strudenta of computer computer science  -68
T2  - Lecture notes ineconomics and mathematical systems
U1  - D65,8(B)0bB2, L2 
PY  - 1972///
CY  - Berlin
PB  - Springer-Verlag         
N1  - Appendix 71-76p
ER  -