1. International Standard Organization, ISO GUIDE 30 (1992) Trends and Definitions used in Connection with Reference Materials, ISO. Geneva, Switzerland
2. International Standard Organization, ISO GUIDE 35 (2006) References materials—general and statistical principles for certification, ISO. Geneva, Switzerland
3. Konieczka P, Namieśnik J (2009) Quality assurance and quality control in the analytical chemical laboratory, a practical approach. CRC Press
4. Konieczka P, Namieśnik J (2007) Ocena i kontrola jakości wyników pomiarów analitycznych. WNT, Warszawa
5. Koziel JA, Martos PA, Pawliszyn J (2004) J Chromatogr A 1025:3–9