Graphics
Beside the authors, the following persons have supported the editors - list below refers to German and English books!
Dobler, Marie-Rose, Berlin, Germany
Tutte
Druckerei GmbH, Salzweg, Germany
Spraker, Terry, College of Veterinary Medicine, Colorado State University, Fort Collins, USA
Suter
Print AG, Ostermundigen, Switzerland
Zech, Martin, Bremen, Germany