LEYENDECKER, B.; AGACHE, A.; MADSEN, S. Nationale Untersuchung zur Bildung, Betreuung und Erziehung in der frühen Kindheit (NUBBEK) – Design, Methodenüberblick, Datenzugang und das Potenzial zu Mehrebenenanalysen: NUBBEK – a national German study on early childhood education and care: Design, methods overview, data access, and the potential for multilevel analyses. Journal of Family Research, [S. l.], v. 26, n. 2, p. p. 244–258, 2014. DOI: 10.3224/zff.v26i2.16528. Disponível em: https://ubp.uni-bamberg.de/jfr/index.php/jfr/article/view/17. Acesso em: 3 may. 2024.