Conference paper (1999) - S Winnerl (author) , E Schomburg (author) , NN Ledentsov (author) , VM Ustinov (author) , AE Zhukov (author) , AR Kovsh (author) , PS Kop'ev (author) , S Brandl (author) , F Klappenberg (author) , KF Renk (author) , AFG van der Meer (author) , J.N. Hovenier (author) , R van Es (author) , TO Klaassen (author) , AA Ignatov (author)