Image: https://cdn.whensthebirthday.com/gallery/2017/1/karl-ziegler/karl-ziegler-cientificos.jpg
Karl Ziegler
professions.scientist de Alemania
Image: https://cdn.whensthebirthday.com/gallery/2017/1/karl-ziegler/karl-ziegler-cientificos.jpg
professions.scientist de Alemania