MathSciNet bibliographic data MR598303 03D30 Posner, David B. A survey of non-r.e. degrees $\leq {\bf 0}\sp{\prime}$$\leq {\bf 0}\sp{\prime}$. Recursion theory: its generalisation and applications (Proc. Logic Colloq., Univ. Leeds, Leeds, 1979), pp. 52–109, London Math. Soc. Lecture Note Ser., 45, Cambridge Univ. Press, Cambridge-New York, 1980. Links to the journal or article are not yet available

For users without a MathSciNet license , Relay Station allows linking from MR numbers in online mathematical literature directly to electronic journals and original articles. Subscribers receive the added value of full MathSciNet reviews.