doctoral_advisor birth_place citizenship image_size fields workplaces birth_date image article_title name alma_mater
fritz hohenberg graz , styria , austria austria 300px mathematics university of graz , technical university of vienna 06 october 1942 hellmuth stachel -lrb- mathematician -rrb- . jpg hellmuth stachel
 hellmuth stachel university of graz , graz university of technology
hellmuth stachel

hellmuth stachel -lrb- born october 6 , 1942 in graz , austria -rrb- is an austrian mathematician , a professor of geometry at the technical university of vienna , who is known due to his contributions to geometry , kinematics and computer-aided design .
