Rupp, R. F.; Hasenmueller, N. R.; Walls, A. C.; Karaffa, M. D.; Brown, S. E.; Fleming, A. H.; Ferguson, V. R.; Hasenmueller, W. A.; Daniels, M. S.; Rohwer, P. D.(Indiana Academy of Science, 2011-03-04)
Rupp, R. F.; Hasenmueller, N. R.; Walls, A. C.; Karaffa, M. D.; Brown, S. E.; Fleming, A. H.; Ferguson, V. R.; Hasenmueller, W. A.(Geological Society of America, 2010-04-12)
Shrake, Douglas L.; Venteris, Erik R.; Larsen, Glenn E.; Angle, Michael P.; Pavey, Richard R.; Wolfe, Mark E.; Powers, Donovan M.(Ohio Department of Natural Resources, Division of Geological Survey, 2011-02)
Venteris, Erik R.; Shrake, Douglas L.; Larsen, Glenn E.; Angle, Michael P.; Pavey, Richard R.; Wolfe, Mark E.(Ohio Department of Natural Resources; Division of Geological Survey, 2011-02)