Using the CLEANED approach to assess environmental impacts in the dairy value chain in Tanga, Tanzania - Notenbaert, An Maria Omer; Morris, Joanne; Pfeifer, Catherine; Paul, Birthe K.; Birnholz, Celine A.; Fraval, Simon; Lannerstad, Mats; Herrero, Mario; Omore, Amos O. (International Livestock Research Institute, 2016)