1. Thorium-to-uranium ratios as indicators of sedimentary processes: Example of concept of geochemical facies;Adams;Amer. Ass. Petrol. Geol., Bull.,1958
2. A geochemical investigation of the Valley Spring gneiss and Packsaddle Schist, Llano Uplift, Texas;Billings;Texas J. Sci.,1962
3. Contribution a la geochimie de l'uranium dans les granites intrusifs;Coulomb;Rapport C.E.A., No. 1173,1959
4. Petrology and geochemistry of high-grade metamorphic and igneous rocks on Langöy, Northern Norway;Heier;Norg. Geol. Unders.,1960
5. Spectrometric uranium and thorium determinations on some high-grade metamorphic rocks on Langöy, Northern Norway;Heier;Norsk Geol. Tidsskr.,1962