Contact
Dr.-Ing. Peter Heller
German Aerospace Center

Institute of Solar Research
, Qualification
Tel: +34 950 362817

Fax: +34 950 365313

E-Mail: Peter.Heller@dlr.de
URL for this article
http://www.dlr.de/sf/en/desktopdefault.aspx/tabid-7090/11714_read-28133/