| value | technique | year | title_of_literature<MAX120col.> | journal<MAX120col.> | vol | page | name<MAX80col.> |
|---|
| 2.8 | ICPES |
1990.02 | Personal communication, Geological Survey of Canada | | | | D.C.Gregoire |
| <5 | OES |
1990.04 | Personal communication, Geological Survey of India | | | | B.G.Rao |
| 2 | OES |
1990.05 | Personal Communication, U.S. Geological Survey, Lakewood | | | | J.S.Kane, J.G.Crock, P.H.Briggs and D.L.Fey |
| 2.8 | ICPES |
1990.05 | Personal Communication, U.S. Geological Survey, Reston | | | | J.S.Kane |
| 2.8 | AA |
1990.04 | Elemental concentrations in nine new GSJ rock reference samples 'sedimentary rock series' | Geost. Newsletter | 14 | 1-5 | S.Terashima, A.Ando, T.Okai, Y.Kanai, M.Taniguchi, |
| 3.0 | AA |
1994 | Personal Communication, Czech Geol. surv, Czech Republic | | | | I.Rubeska |
| 3 | OES |
1999 | Personarl Communication, Institute of Geology, Estonia | | | | T. Kiipli |