L Siekmann

Analytical specifications of reference methods compilation and critical discussion (from the members of the European EQA-Organizers Working Group B).

L M Thienpont, C Franzini, J Middle, 1996, European journal of clinical chemistry and clinical biochemistry : journal of the Forum of European Clinical Chemistry Societies.

Reference materials and reference measurement systems in laboratory medicine. Networks of Reference Laboratories.

L Siekmann, L Thienpont, B T Doumas, 1995, European journal of clinical chemistry and clinical biochemistry : journal of the Forum of European Clinical Chemistry Societies.

Analytical quality specifications for reference methods and operating specifications for networks of reference laboratories. discussion paper from the members of the external quality assessment (EQA) Working Group B1) on target values in EQAS.

C Franzini, J Middle, D Stöckl, 1995, European journal of clinical chemistry and clinical biochemistry : journal of the Forum of European Clinical Chemistry Societies.

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.