00314nam a2200109Ia 450000500170000000800410001708200140005810000140007224500660008626000440015230000080019620260224040945.0260224s9999||||xx |||||||||||||| ||und||  a333.7 MIL  aMilne, J. 0aPastoral systems in marginal environments: proceedings of …  aWageningen: Academic Publishers, c2005  a215