Incorporating livestock in global integrated assessments of agro-ecosystems good and services - Herrero, Mario; Thornton, Philip K.; Havlík, Petr; Rosegrant, Mark W.; Msangi, Siwa; Fritz, Steffen; Lotze-Campen, Hermann; Notenbaert, An Maria Omer; Gerten, D.; Eickhout, B.; Sulser, T.; Ringler, Claudia; et al. (Wageningen University & Research, 2009)