Water Resources Research Institute - 2013 Perrin, M. T., Fogleman, A., & Allen, J. C. (2013). The Nutritive and Immunoprotective Quality of Human Milk beyond 1 Year Postpartum: Are Lactation-Duration-Based Donor Exclusions Justified? JOURNAL OF HUMAN LACTATION, 29(3), 341–349. https://doi.org/10.1177/0890334413487432 Butler, E. M. (2013). Species-specific escape behaviour in grasshoppers. BEHAVIOUR, 150(13), 1531–1552. https://doi.org/10.1163/1568539x-00003108