00311nam a2200121Ia 4500008004100000040000600041041001200047082001000059082001100069100001900080245001900099245007100118141004s9999    xx            000 0 und d  ca  aEnglish  a634.9  bHOE/US  aD.A   Hoekstra  cD.A   Hoekstra 4aThe use economics in diagnosis and design of agroforestry  systems