TY  - RPRT
TI  - The Penokean orogeny in the Lake Superior region
AU  - K. J. Schulz
AU  - W.F. Cannon
PY  - 2007
DO  - 10.1016/j.precamres.2007.02.022
UR  - https://pubs.usgs.gov/publication/70030757
ID  - 70030757
ER  -