%A Air Force Conference on Matrix Methods in Structural Mechanics %A Berke, L. %A Air Force Flight Dynamics Laboratory (U.S.) %T Proceedings of the Second Conference on Matrix Methods in Structural Mechanics : proceedings of the conference held at Wright-Patterson Air Force Base, Ohio, 15-17 Oct. 1968 %I National Technical Information Service %D 1970 %U https://ci.nii.ac.jp/ncid/BA9119375X