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Pierre Janin — Spatiotemporal management of food supply in Burkinabé Sahel. Sahel zones are marked by food risks (unavailability, insufficiency, fluctuation, inaccessibility). One of the difficulties for researchers and decision makers consists of assessing this risk in time and in space and in measuring the real vulnerability of the communities. Given the weak capacity of governments and international organisations to intervene and to forecast shortages, households have to individually manage the strategic periods of supply. However, to fight against seasonal food insecurity, they have a limited number of responses which must be associated with the adequate temporal management of their granaries.Janin Pierre. Gestion spatio-temporelle de la soudure alimentaire dans le Sahel burkinabé. In: Tiers-Monde, tome 45, n°180, 2004. ONG : les pièges de la professionnalisation, sous la direction de Anne Le Naëlou et Jean Freyss. pp. 909-933