TY  - RPRT
TI  - A marine biogeochemical perspective on black shale deposition
AU  - David Z. Piper
AU  - S.E. Calvert
PY  - 2009
DO  - 10.1016/j.earscirev.2009.03.001
UR  - https://pubs.usgs.gov/publication/70208037
ID  - 70208037
ER  -