TY - RPRT TI - Development and evaluation of solution procedures for geometrically nonlinear structural analysis by the direct stiffness method AU - Haisler, W. E. AU - Stebbins, F. J. AU - Stricklin, J. A. PY - 1971 UR - https://ntrs.nasa.gov/citations/19710044638 ID - 19710044638 ER -