| value | technique | year | title_of_literature<MAX120col.> | journal<MAX120col.> | vol | page | name<MAX80col.> |
| 37 | XRF |
1994 | Personal Communication, The Open University, UK | | | | P.J.Potts |
| 37.24 | ICPMS |
1994 | Personal communication, National Geophysical Research Institute | | | | V.Balaram |
| 37 | XRF |
1994 | Personal communication,Lund Univ., Sweeden | | | | Zoltan Solyom |
| 38 | XRF |
1996 | Personal communication, Institut fur Geowissenschaften,Germany | | | | Frau N.Groschopf |
| 35 | XRF |
1997 | XRF Analysis of Major and Trace Elements for Silicate Rocks Using Low Dilution Ratio Fused Glass | HUEPS Technical Report-2 | | 1-20 | R.Tanaka and Y.Orihashi |
| 34 | XRF |
1998 | Personal communication,GEOMAR,Germany | | | | K.Wolf |
| 38.30 | ICPMS |
1998 | Personal communcation,Universite de Liege,Belgium | | | | I.Roelandts |
| 33 | XRF |
1999 | Personal communication,Institute of Geology,Estonia | | | | T.Kiipli |
| 33 | XRF |
1994 | Personal Communication,WSU GeoAnalytical Laboratory, USA | | | | C. Knaack, S. Cornelius and P. Hooper |
| 33 | XRF |
2000 | Personarl Communication,Washington State University | | | | D. Johnson |
| 40 | OES |
1999 | Personarl Communication, Institute of Geology, Estonia | | | | T. Kiipli |
| 37.4 | EXRF |
2002 | Personal Communication, Southern Connecticut State Univ., USA | | | | T. Fleming |