The foreign worker and the german labor movement : xenophobia and solidarity in the coal fields of the Ruhr 1871 - 1914

by Kulczycki, John J.
Published 1994

The Polish Coal Miner's Union and the german labor movement in the Ruhr : 1902 - 1934 ; national and social solidarity

by Kulczycki, John J.
Published 1997

People on the move : forced population movements in Europe in the Second World War and its aftermath

Published 2008