TY  - RPRT
TI  - Cyclic terpenoids of contemporary resinous plant detritus and of fossil woods, ambers and coals
AU  - Bernd R. T. Simoneit
AU  - J.O. Grimalt
AU  - T.-G. Wang
AU  - R.E. Cox
AU  - Patrick G. Hatcher
AU  - A. Nissenbaum
PY  - 1986
DO  - 10.1016/s0146-6380(86)80025-0
UR  - https://pubs.usgs.gov/publication/70014532
ID  - 70014532
ER  -