| value | technique | year | title_of_literature<MAX120col.> | journal<MAX120col.> | vol | page | name<MAX80col.> |
| 6000 | CHEM |
1990.02 | Personal communication, Geological Survey of Canada | | | | D.C.Gregoire |
| 6600 | UU |
1990.05 | Personal Communication, U.S. Geological Survey, Lakewood | | | | J.S.Kane, J.G.Crock, W.H.Ficklin, C.S.Papp and J.D |
| 6175 | CEA |
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, |
| 6030 | CHEM |
1994 | Personal Communication, Czech Geol. surv, Czech Republic | | | | I.Rubeska |