1. R. Widmer, P. Price, Porous Castings? HIPing Might be Your Answer Bronzes, Industrial Materials Technology, Andover, MA, 1982.
2. C. Ingelbrecht, A. Adriaens, E. Maier, Certification of Arsenic, Lead, Zinc and Tin (Mass Fractions) in Five Copper Alloys, BCR 691, Report EUR 19778/1, 2001.
3. Proposal for the Standards and Measurements and Testing Program, 4th framework 1994–1998, The European Commission, DG XII, SMT4-CT96-2055 IMMACO.
4. Guide for Good Analytical Practice, Report EUR 19778-2, 2001.
5. D. Simpson, W.G. Simpson, Application of Light Microscopy in Analysis, Royal Society of Chemistry, London, 1988, pp. 36–47.