Quintessence Publishing Company Publisher: Christian W. Haase P. O. Box 42 04 52; 12064 Berlin; Germany Ifenpfad 2-4; 12107 Berlin; Germany Phone +49 (0) 30 / 7 61 80-5 Fax. +49 (0) 30 / 7 61 80-692 Web: www.quintessenz.de Email: info@quintessenz.de Registry: Berlin 93 HRB 15.582 USt-IdNr.: DE 136 627 147