Ignasiak, Z., Sławińska, T., & Malina, R. M. (2016). Short term secular change in body size and physical fitness of youth 7–15 years in Southwestern Poland: 2001–2002 and 2010–2011. Anthropological Review, 79(3), 311–329. https://doi.org/10.1515/anre-2016-0023