Title: Introduction to Classical Mathematics I: From the Quadratic Reciprocity Law to the Uniformization Theorem / Edition 1, Author: Helmut Koch
Title: Einf�hrung in die Mathematik: Hintergr�nde der Schulmathematik / Edition 2, Author: Helmut Koch
Title: Galois Theory of p-Extensions / Edition 1, Author: Helmut Koch