1. Measure and Integration Theory (Walter de Gruyter, Berlin et al. 2001).
2. Recursive and computable operations over topological structures. Informatik Berichte 255, FernUniversität Hagen, 1999.
3. Computability on subsets of metric spaces
4. Measure Theory (Birkhäuser, Boston 1980).
5. Measure Theory (Springer-Verlag, New York 1974).