| value | technique | year | title_of_literature<MAX120col.> | journal<MAX120col.> | vol | page | name<MAX80col.> |
| 3.2 | AA |
1984.03 | Personal communication, Geological Survey of Japan | | | | S.Terashima |
| 3.1 | AA |
1987.04 | Elemental concentrations in nine new Japanese rock reference samples | Geost. Newsletter | 11 | 75-77 | S.Terashima and A.Ando |
| 4 | AA |
1987.07 | Personal communication, BMG, Philippines | | | | E.M.Macalalad |
| 2.6 | OES |
1988.02 | Personal communication, USSR Academy of Sciences Siberian Branch | | | | V.P.Afonin |
| 2.9 | ICPES |
1994 | Personal Communication, Torei Research Center, Japan | | | | M.Tanaka |
| 3.61 | ICPMS |
1995 | Personal communication,Toho Univ.,Japan | | | | N. Takamatsu |
| 3.3 | ICPES |
1995 | Inductively coupled plasma atomic emission spectrometric determination of beryllium in aluminium-based alloys and rock samples by introducing beryllium into the plasma as ethylberyllium species | Analytica Chimica Acta | 309 | 379-385 | S.Tao,Y.Okamoto and T.Kumamaru |
| 4.5 | OES |
1999 | Personarl Communication, Institute of Geology, Estonia | | | | T. Kiipli |