TY  - RPRT
TI  - Germanium and uranium in coalified wood from Upper Devonian black shale
AU  - Irving A. Breger
AU  - James M. Schopf
PY  - 1954
DO  - 10.3133/tei496
UR  - https://pubs.usgs.gov/publication/tei496
ID  - tei496
ER  -