SIPOWICZ, Kasper; PIETRAS, Tadeusz. Life unworthy of life – eugenics of “deteriorated” people in the Third Reich. Kwartalnik Naukowy Fides et Ratio, [S. l.], v. 39, n. 3, p. 312–324, 2019. DOI: 10.34766/fetr.v3i39.139. Disponível em: https://fidesetratio.com.pl/ojs/index.php/FetR/article/view/107. Acesso em: 26 jan. 2026.