%0 Thesis %9 Dissertation %A Steiner, Ingo %T Development of a high-resolution spectrograph and observations of CH+ absorption lines in the interstellar medium %D 2008 %R 10.23689/fidgeo-38 %I Univ. Bochum %U http://hdl.handle.net/11858/00-1735-0000-0001-30A9-A %~ FID GEO-LEO e-docs