| value | technique | year | title_of_literature<MAX120col.> | journal<MAX120col.> | vol | page | name<MAX80col.> |
|---|
| 0.06 | CHEM |
1967 | Personal communication, U.S.Geological Survey, Denver, Colorado, USA | | | | E.L.Munson |
| 0.19 | CHEM |
1968 | Quated in K.Govindaraju (1968, 1969). | | | | M.Vernet |
| 0.08 | CHEM |
1968 | Quated in Maxell,J.A.(1968) | | | | J.L.Bouvier |
| 0.06 | CHEM |
1970 | Personal communicaction, Geological Survey of Japan | | | | Maeda K. |
| 0.06 | CHEM |
1970 | Personal communication, Geological Survey of Japan | | | | T.Omori |
| 0.07 | CHEM |
1972 | Personal communication, Tokyo Coal and Mineral Lab., Tokyo, Japan | | | | K.Ohta |
| 0.08 | CHEM |
1972 | Quated in Schmidt K. (1972) | | | | D.C.G.Friese |
| 0.11 | CHEM |
1975.01 | Personal communication, Service Analyse et Contro, Complexe Scientifique, Canada. | | | | J. Gagnon |
| 0.0610 | VOLU |
1982.08 | Personal communication, Okayama University, Japan | | | | A.Ueda |