@misc{misc7684f143, title = {Distinguishing between the sand units of the carboniferous Itararé subgroup and the devonian furnas formation in Parana State Brazil}, author = {Thomson, Olivia A. and Rocha-Campos, A. C. and Cotter, J. F. P.}, year = {2010}, booktitle = {The Meeting of the Rocky Mountain Section of the Geological Society of America and associated societes} }