1. Boron isotope analysis. A review;Aggarwal;Analyst,1995
2. Agyei, E.K., 1968. Isotopic and Elemental Composition of Boron in Meteorites, Tektites, and Terrestrial Minerals. PhD Thesis, McMaster Univ.
3. La qualité du café: Ses causes. Son appréciation, son amélioration;Barrel;Plantations Recherche Developpement,1994
4. Boron isotope variations in nature: a synthesis;Barth;Geol. Rundsch.,1993
5. A critical evaluation of the available measurements for the stable isotopes of boron;Bassett;Appl. Geochem.,1990