Walker R, Lunley I (1999) Pitfalls in terminology and use of reference materials. Trends in Analytical Chemistry 18(9–10): 594–616.
ISO Guide 30 (1992): Terms and definitions used in connection with RMs (in cooperation with IUPAC)
www.cordis.lu/growth/
http://ts.nist.gov/ts/htdocs/230/232/232.htm, www.irmm.jrc.be, www.iaea.org/worldatom/, http://www.comar.bam.de/, http://www.bam.de/service/referenzmaterialien/referenzmaterialien.htm
ISO Guide 33 - 2000: Uses of certified reference materials
ILAC-G12:2000: Guidelines for the Requirements for the Competence of Reference Material Producers
www.irmm.jrc.be
EU-Project ZONMAIZE, Contract No: SMT4-CT98-2228