@inproceedingsZiegler_2005, title=Computability and Continuity on the Real Arithmetic Hierarchy and the Power of Type-2 Nondeterminism, volume=3526, DOI=10.1007/11494645_68, booktitle=Proc. CiE 2005: New Computational Paradigms, publisher=Springer, author=Ziegler, Martin, year=2005, pages=562–571 
LibreCat: /record/18280
DOI: 10.1007/11494645_68