PhD defence The History of Dutch Agricultural Innovation, c. 1880-1960 PhD candidate Harm MA H (Harm) Zwarts Promotor prof.dr. EHP (Ewout) Frankema Co-promotor mr.dr. PJ (Piet) van Cruijningen External copromotor prof. dr EJV van Nederveen Meerkerk (UU) Organisation Wageningen University, Economic and Environmental History, Wageningen School of Social Sciences (WASS) Date Fri 4 June 2021 13:30 to 15:00 Venue Twitter Whatsapp Linkedin Email