Dear Sir or Madam, Please find the invoice for the OSTIV membership/subscription of Akaflieg Darmstadt attached. In case your contact details have changed, please visit http://ostiv.org/adrchange.html <http://ostiv.org/adrchange.html> Kind regards OSTIV Accounts -- ----------------------------------------------------------------- Secretary of OSTIV-President Prof. Dr.-Ing. Rolf Radespiel c/o TU Braunschweig Institute of Fluid Mechanics Hermann-Blenk-Str. 37 38108 Braunschweig j.kupke@tu-bs.de