Sight versus Sound: Do Visual Assessments of Dead Standing Trees Reflect Acoustic Nondestructive Evaluations of Wood Quality?, Tyler J. Hovde, John W. Forsman, Robert J. Ross, Mark Rudnicki, Xinfeng Xie, Xiping Wang, Yvette L. Dickson
Michigan Tech Publications

System for and method of performing evaluation techniques on a log or round timber, Xiping Wang, Robert J. Ross, James A. Mattson, John Erickson, John W. Forsman, Earl A. Geske, Michael A. Wehr
Michigan Tech Patents