doi:10.7916/d8-h8da-vg87A new electronic opera from Germany : the first performance of Boris Blacher's "Incidents during an emergency landing" at the Hamburg State Operamusicsound recordingssound recording - musicalOperasRadio programsOpera--20th century.--Germany (West)Blacher, Boris, 1903-1975Zwischenfalle bei einer Notlandung