Loeckx J Computability and decidability: an introduction for strudenta of computer computer science -68 Loeckx J - Berlin Springer-Verlag 1972 - vi,76p. cm. - Lecture notes ineconomics and mathematical systems . Appendix 71-76p Standard No.: 31552 Source: Textual Dewey Class. No.: D65,8(B)0bB2, L2