TY - BOOK AU - Bernard Vanlauwe, Piet Van Asten and Guy Blomme (ed) TI - Agro-ecological intensification of agricultural systems in the African highlands SN - 9780415532730 AV - S 472 .A37 2013 PY - 2013/// CY - Oxon PB - Routledge KW - Agricultural intensification KW - congresses KW - Africa, East KW - Upland agriculture KW - Congresses KW - Africa KW - Food security KW - Africa, Sub-Saharan ER -