Centronics Doc (19xx)(-)[doc]
Centronics Doc (1989)(Bernd Koch)[a][doc]
Centronics Doc (1989)(Bernd Koch)[a2][doc]
Copy.com Doc (1990)(Bernd Wilske)[a][doc]
Copy.com Doc (1990)(Bernd Wilske)[a2][doc]
Messestadt Leipzig – Wissenstest (19xx)(-)[a][doc]