1. Disposal of electronic waste (German);Schlag;Müll und Abfall,1992
2. Recycling of old computers from the point of view of a segregation unit;Stoll,1992
3. Amounts of used electronic appliance (German);Zentralverband Elektrotechnik - und Elektronikindustrie (ZVEI);VDIS-Nachrichten,1993
4. Waste of electronic compounds and printed circuit boards in Germany (German);FhG-Institut für Systemtechnik und Innovationsforschung,1990
5. Waste disposal logistic III (German);Rinschede;Erich Schmidt Verlag S.,1994