Pfeiffer, Friedhelm and Holger Stichnoth (2021), Bildungsinvestitionen optimieren, ZEW policy brief No. 21-08, Mannheim. Download
Pfeiffer, Friedhelm and Holger Stichnoth (2021), Bildungsinvestitionen optimieren, ZEW policy brief No. 21-08, Mannheim. Download