Bernd Alois Zimmermann | Alois Jirásek | Alois Alzheimer | Alois Hotschnig | Alois Hitler, Jr. | Count Alois von Beckh Widmanstätten | Alois Plum | Alois Musil | Alois Lipburger | Alois Kottmann Award | Alois Kingsley | Alois Estermann | Alois Buttinger | Alois Bierl | Alois and Anna Bommer |
Klein was committed to a variety of projects, and was a member of the jury for the Alois Kottmann Award for classical violin playing along with the singer Agnes Giebel and violinist Alois Kottmann.