Pertti Ahonen Pertti Ahonen is Professor of History in the Department of History and Ethnology at the University of Jyväskylä, Finland. He is the author of After the Expulsion: West Germany and Eastern Europe 1945-1990 (2003), People on the Move: orced Population Movements in Europe in the Second World War and Its Aftermath (co-authored with Gustavo Corni, Jerzy Kochanowski, Rainer Schulze, Tamas Stark and Barbara Stelzl-Marx, 2008) and Death at the Berlin Wall (2010). Read More Read Less