Biogenic surface layers on historical window glass and the effect of excimer laser cleaning Rainer Drewello, Carola Troll, Stefan Wuertz, Sabine Rölleke, Rudolf Weißmann, Ursula Drewello, Farideh Fekrsanati, Elisabeth Müller • 2000
UV-laser radiation: basic research of the potential for cleaning stained glass Christoph Olaineck, Carola Troll, Ursula Drewello, Farideh Fekrsanati, Jens Hildenhagen, Klaus Dickmann • 2000