National Aeronautics and Space Administration, Lewis Research Center ; Springfield, Va. : Available from National Technical Information Service1980.<PA235-35>
sponsored by the American Ceramic Society, Inc., the American Society for Nondestructive Testing ; Alex Vary, conference co-chairman, Jack Snyder, conference co-chairmanAmerican Ceramic Societyc1987
sponsored by ASTM Committee D-18 on Soil and Rock for Engineering Purposes and Committee E-24 on Fracture Testing, American Society for Testing and Materials, Chicago, Ill., 23-24 June 1980 ; S.W. Freiman and E.R. Fuller, Jr., editorsASTMc1981