Arch canopy verification tests
By: by Richard A. Allwes and C.P. Mangelsdorf.
Contributors: Mangelsdorf, C. P.
Series: Report of investigations;; 9306; Report of investigations (United States. Bureau of Mines) ;; 9306.
Publisher: Bureau of Mines, U.S. Dept. of the Interior
Published: 1990
Place of publication: Washington, D.C
Language: eng
Number of pages: 26
Subjects: Mine roof control -- Testing.; Structural dynamics.
Notes: Includes bibliographical references (p. 20).