00373nam a2200097Ia 4500008004100000082002900041100003500070245010800105260005400213300000800267140113s9999    xx            000 0 und d  a546.32 :581.1:577.4   L1  aInternational Potash Institute  aPotassium in Biochemistry & Physiology :Proceedings of the 8th Colloquim International Potash Institute  a1971bInternational Potash InstitutecSwitzerland  a244