S. Zinn, H. Steinhauer, and C. Aßmann. NEPS Survey Paper, 18. Bamberg, Germany: Leibniz Institute for Educational Trajectories, National Educational Panel Study, (2017)
S. Zinn, H. Steinhauer, and C. Aßmann. NEPS Survey Paper No. 18. Bamberg, Germany: Leibniz Institute for Educational Trajectories, National Educational Panel Study, (2017)