TY  - RPRT
TI  - Transient electromagnetic soundings near Great Sand Dunes National Park and Preserve, San Luis Valley, Colorado (2006 field season)
AU  - David V. Fitterman
AU  - Oderson A. de Souza Filho
PY  - 2009
DO  - 10.3133/ofr20091051
UR  - https://pubs.usgs.gov/publication/ofr20091051
ID  - ofr20091051
ER  -