Wilke, Liza, Sonja Boeker, Rebecca Mumm, and Detlef Groth. “The Social Status Influences Human Growth: A Summary and Analysis of Historical Data from German School Girls in 1914 With Comparison to Modern References”. Human Biology and Public Health 3 (June 16, 2022). Accessed December 22, 2024. https://human-biology-and-public-health.org/index.php/hbph/article/view/22.