Byrne, A R Some considerations regarding reference materials and their role in environmental monitoring. Plenary lecture. [electronic resource] - The Analyst Mar 1992 - 251-8 p. digital Publication Type: Comparative Study; Journal Article; Review ISSN: 0003-2654 Standard No.: 10.1039/an9921700251 doi Subjects--Topical Terms: Environmental Monitoring--methodsQuality ControlReference Standards