TY  - RPRT
TI  - Biochronology and paleoclimatic implications of Middle Eocene to Oligocene planktic foraminiferal faunas
AU  - Gerta Keller
PY  - 1983
DO  - 10.1016/0377-8398(83)90011-7
UR  - https://pubs.usgs.gov/publication/70011597
ID  - 70011597
ER  -