| value | technique | year | title_of_literature<MAX120col.> | journal<MAX120col.> | vol | page | name<MAX80col.> |
| 10.3 | AA |
1996 | Determination of molybdenum in fifty three geochemical reference materials by flameless atomic absorption spectrometry | Geostamdards Newsletter | 21 | 93-96 | S.Terashima |
| 8.4 | AA |
1997 | Personal Communication,SKK,Japan | | | | |
| 9.2 | AA |
1998 | Personal communication,SKK,Japan | | | | |
| 9 | AA |
1998 | Personal communication,SKK,Japan | | | | |
| 9 | XRF |
1998 | Personal Communication,New Mexico institute of Mining & Technology | | | | Chris McKee |
| 10 | OES |
1999 | Personarl Communication, Institute of Geology, Estonia | | | | T. Kiipli |
| 10.6 | EXRF |
2002 | Personal Communication, Southern Connecticut State Univ., USA | | | | T. Fleming |