Hemetsberger, J., Scheiber, I. B. R., Weiss, B. M., Frigerio, D., & Kotrschal, K. (2010). Influence of socially involved hand-raising on life history and stress responses in greylag geese. Interaction Studies, 11(3), 380-395. doi:10.1075/is.11.3.03hem.