Lehrbuch der Analysis

"Das Werk ist eine didaktische Meisterleistung" (ZAMP).
"Dieses großartige [Lehrbuch] ... ist mit überall durchschimmerndem Engagement, ja mit Begeisterung geschrieben" (ZAMM).
"The author succeeds convincingly in showing how the rich carpet of analysis with its infinitely manifold colors and figures is woven from a few threads (the axioms on real numbers) more and more thightly and ... how rich and deep the inner relations between its concepts and procedures are" (Math. Rev.)