https://www.mpib-berlin.mpg.de/776063/jahresbericht_gesamt_1998_2000.pdf (Any fulltext)
jahresbericht_gesamt_1998_2000.pdf (Any fulltext), 4MB
Max Planck Institute for Human Development, Max Planck Society (Ed.).(2001). Research report 1998-2000. Berlin: Max Planck Institute for Human Development.