TY - JOUR A1 - Massey, D.S. A1 - Kalter, F. A1 - Pren, K.A. T1 - Structural economic change and international migration from Mexico and Poland Y1 - 2008 JF - Kölner Zeitschrift für Soziologie und Sozialpsychologie VL - 60 IS - 48 ER -