1. An inter-laboratory survey of the accuracy of ore analysis Transactions, Section B, Applied earth science;Lister;Institution of Mining and Metallurgy,1970
2. Second inter-laboratory survey of the accuracy of ore analysis Transactions, Section B, Applied earth science;Lister;Institution of Mining and Metallurgy,1977
3. U.S. Geological Survey silicate rock standards;Flanagan;Geochimica et Cosmochimica Acta,1967
4. Nouveaux étalons géochimiques: granite GS-N et feldspath FK-N;Roche;Analusis,1976
5. Critical evaluation of powder sampling procedures;Allan;The Chemical Engineer,1970