Authors: ACKERMANN M BREITSCHUH W BUCHLER H KUPPERS G LUHRS C SCHLOTHMANN BJ STAATS G ZENS R

Citation: M. Ackermann et al., PRIMARY REFERENCE MATERIALS FOR CHEMICAL-COMPOSITION ANALYSIS - PROPOSAL FOR AN OPERATIONAL DEFINITION, Fresenius' journal of analytical chemistry, 357(6), 1997, pp. 562-562