Prof. Gustav Heinrich Ralph von Koenigswald (1902-1982) ; mineralogical retailer Dr. F Krantz ; Ernst Probst: Moustérien ; Hans Joachim Schweitzer: Oberdevon-Flora der Bäreninsel (1967) ;
draftsman Skasubski ;
mineralogical, paleontolgoical, and fossil restorations, reconstruction modelling, drawing, paleontological sculpture