TY - GEN TI - Isotopic and chemical tracers for the sustainable management of water resources in semi-arid area: case of Massa catchment, Morocco U1 - 551.49096454 23E KW - EAU SOUTERRAINE KW - RESSOURCES AQUATIQUES KW - PLAINE KW - SOUSS (région) KW - MAROC N1 - Bibliogr. p. 267-268 ER -