Knab, L. I.; Yokel, F. Y.; Galligan, W. L.; Bendtsen, B. A.; Senft, J. F.
view article (9.992496)
Study of Lumber Used for Bracing Trenches in the United States. Building Science Series (Final).
National Bureau of Standards, Washington, DC; Forest Products Laboratory, Madison, WI; Purdue Univ., West Lafayette, IN
Department of Labor, Washington, DC,
NBS BSS 122,
March 1980,