| value | technique | year | title_of_literature<MAX120col.> | journal<MAX120col.> | vol | page | name<MAX80col.> |
|---|---|---|---|---|---|---|---|
| 190 | XRF | 1987.11 | Personal communication, Govern. Chem. Lab., Brisbane, Australia | H.A.Olszowy, R.Sumner, J.Hegarty, P.Smith and P.Fu | |||
| <200 | INAA | 1989.03 | Personal communication, Musashi Institute of Technology, Japan | S.Hirai and S.Suzuki |