Prof. Dr. Christoph Helmberg
Address
Technische Universität Chemnitz
Fakultät f&uuuml;r Mathematik
D-09107 Chemnitz
Germany
Phone:
+49 371 531-34122
(office)
+49 371 531-22100
(secr.)
FAX:
+49 371 531-22109
e-mail:
helmberg@mathematik.tu-chemnitz.de
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