https://www.mpib-berlin.mpg.de/1163007/research_report_2017_2019-20_nov_kl.pdf (全文テキスト(全般))
research_report_2017_2019-20_nov_kl.pdf (全文テキスト(全般)), 32MB
Max Planck Institute for Human Development, Max Planck Society (Ed.).(2020). Research report 2017-2019/20. Berlin: Max Planck Institute for Human Development.