Guenter Mittag (l), member of the Politburo and secretary of the Central Committee of the SED, adjusting Representative of the Chairman of the Council of State, received the Federal Minister for Research and Technology of the Federal Republic of Germany, Dr. Heinz Riesenhuber (2nd from right), for an interview. Also present were Dr. Herbert Weiz (2nd from left), Minister of Science and Technology and Deputy Chairman of the Council of Ministers, and the Head of the Permanent Mission of the FRG in the GDR, Dr. Franz Bertele (r)