1: Introduction: Situating Children of Migrants across Borders and Origin: Claudio Bolzman, Laura Bernardi, Jean-Marie Le Goff -- Part I: Comparison as Key Methodological Tool ad Challenging Perspective in Study of the Children of Migrants: 2: Damned of you do, Damned if you don’t: The Challenges of Including and Comparing the Children of Immigrants in European Survey Data: Laurence Lessard-P…