Born in 1964. School attendance from 1970 until 1983. Studies in Mathematics from 1983 until 1989. Diploma in Mathematics in 1989. Doctor of Mathematics (https://www.genealogy.math.ndsu.nodak.edu/id.php?id=59813) in 1994 at the University of Paderborn(https://www.uni-paderborn.de). Since 1996: Employed at "Deutsche Telekom AG" (or subsidiaries of it) as a software engineer since 1996. Address: Oberschelps Feld 6, 33739 Bielefeld, Germany.