00286nam a2200097Ia 4500008004100000082001900041100002700060245005400087260003900141300000800180140113s9999    xx            000 0 und d  a631.95.45   P8  a"Uphoff, Norman., Ed."  aBiological Approaches to sustainable soil systems  a2006bTaylor & FranciscBoca Raton  a764