D. K. Brogan

Testing procedure for the certification of underground protective cabs and canopies

S. G. Sawyer, D. K. Brogan, 1974 .

Experimental verification of the computer program CANOPY by the static testing of a continuous-miner canopy. A supplement to Bureau of Mines Information Circular 8546

S. G. Sawyer, D. K. Brogan, J. L. Dahle, 1974 .

Elastic plane frame analysis of semisymmetric cabs and canopies used on underground electric face equipment. Report of investigations

S. G. Sawyer, D. K. Brogan, 1973 .