00289nam a2200097Ia 4500008004100000082002100041100003800062245004900100260003400149300000800183140113s9999 xx 000 0 und d a581.1 :543 J5.4 a"Paech,K. and Tracey, M.V., Eds." aModern methods of chemical analysis -Vol. IV a1955bSpringer VerlagcBerlin a766