1. Adesogan AT, Havelaar AH, McKune SL, Eilittä M, Dahl GE (2020) Animal source foods: sustainability problem or malnutrition and sustainability solution? Perspective matters. Glob Food Sec 25:100325
2. Anindo DO, Potter HL (1986) Milk production from Napier grass (Pennisetum purpureum) in a zero-grazing feeding system. East African Agricultural and Forestry Journal 52(2):106–111. https://doi.org/10.1080/00128325.1986.11663503
3. Aroeira LJM, Lopes FCF, Deresz F, Verneque RS, Dayrell MS, De Matos LL, Maldonado-Vasquez H, Vittori A (1999) Pasture availability and dry matter intake of lactating crossbred cows grazing elephant grass (Pennisetum purpureum, Schum.). Anim Feed Sci Technol 78(3–4):313–324
4. Concern Worldwide (2014) Living in the Hollow of Plenty: World Hunger Today and The Hunger Map. Concern Worldwide, Association of Geography Teachers Ireland (AGTI), 80:20 Educating and Acting for a Better World and DevelopmentEducation.ie. https://developmenteducation.ie/resource/living-in-the-hollow-of-plenty-world-hunger-today-and-the-hunger-map/
5. Cook BG, Pengelly BC, Brown SD, Donnelly JL, Eagles DA, Franco MA, Hanson J, Mullen BF, Partridge IJ, Peters M, Schultze-Kraft R (2005) Tropical Forages: an interactive selection tool. Web Tool. CSIRO, DPI&F (Qld), CIAT and ILRI, Brisbane, Australia. http://www.tropicalforages.info/forages.html