A M van der Veen

Estimation of the uncertainty of CRMs in accordance with GUM: Application to the certification of four enzyme CRMs

L Siekmann, J Pauwels, A Lamberty, 2000, Fresenius' journal of analytical chemistry.

Estimating the uncertainty of stability for matrix CRMs

L Siekmann, J Pauwels, A Lamberty, 2001, Fresenius' journal of analytical chemistry.