| value | technique | year | title_of_literature<MAX120col.> | journal<MAX120col.> | vol | page | name<MAX80col.> |
| <20 | OES |
1990.04 | Personal communication, Geological Survey of India | | | | B.G.Rao |
| 28.0 | NAA |
1996 | Measurement of thermal neutron absorption cross section in selected geochemical refernce materials | Geostandards Newstetter | 20 | 79-85 | P.K.Harvey,M.A.Lovell,T.S.Brewer,J.Locke and E.Man |
| 34.6 | MS |
1993 | Boron isotope systematics of marine sediments | Earth and planetary science letters | 117 | 567-580 | T.Ishikawa,E.Nakamura |
| 35.1 | ICPES |
1998 | Personal communication,GSJ,Japan | | | | S.Terashima |
| 35.1 | ICPES |
1998 | Alkali fusion/ICP-AES for the determination of boron in geological reference materials and a comperison with spectrophotometry | BUNSEKI KAGAKU | 47 | 451-454 | S.Terashima,T.Okai and M.Taniguchi |