1. Annealing of far infrared photoconductors with infrared diode lasers

   • U. Schießl
   • M. Tacke
   • D. Lemke

   OriginalPaper Pages: 139 - 148

2. Performance of the acousto-optical spectral line receivers at the metsahovi 14 m radio telescope

   • L. Malkamäki
   • K. Mattila
   • J. Peltonen

   OriginalPaper Pages: 149 - 161

3. An intensified C.C.D. camera for telescope guidance

   • Herpe G.
   • Chevreton M.
   • Gex F.

   OriginalPaper Pages: 163 - 177

4. Charge coupled devices (CCDs) in X-ray astronomy

   • D. H. Lumb
   • G. D. Berthiaume
   • J. A. Nousek

   OriginalPaper Pages: 179 - 201