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Weigl, R. M.; Tilton, J. E.; Haugse, C. N.; Light, Merle R.; Buchanan, M. L. (North Dakota State University, 2010-06-23)

Weigl, Robert M.; Tilton, J. E.; Light, Merle R.; Haugse, C. N.; Buchanan, M. L. (North Dakota State University, 2010-06-23)