TY  - RPRT
TI  - Palaeobotanical evidence for a June 'impact winter' at the Cretaceous/Tertiary boundary
AU  - J. A. Wolfe
PY  - 1991
DO  - 10.1038/352420a0
UR  - https://pubs.usgs.gov/publication/70016589
ID  - 70016589
ER  -