Colleran, Heidi, Ellison, Peter T., Galbarczyk, Andrzej, Jasienska, Grazyna, Klimek, Magdalena, Thune, Inger and Ziomkiewicz, Anna (2015) Digit Ratio (2D:4D) Does Not Correlate with Daily 17b-Estradiol and Progesterone Concentrations in Healthy Women of Reproductive Age. American Journal of Human Biology, 27 (5). pp. 667-673.

Colleran, Heidi, Jasienska, Grazyna, Nenko, Ilona, Galbarczyk, Andrzej and Mace, Ruth (2015) Fertility decline and the changing dynamics of wealth, status and inequality. Proceedings of the Royal Society B: Biological Sciences, vol. 282 (n° 1806).