1. Clough R. W. and Niwa A. (1979). “Static tilt tests of a tall cylindrical liquid‐storage tank.” Rep. UCB/EERC‐79/06 Earthquake Engineering Research Center. University of California Berkeley Calif.
2. “Fortran subroutines for mathematical application.” (1987). Problem‐Solving Software Systems IMSL. Houston Tex.
3. Haroun M. A. Badawi H. S. and Nanda C. B. (1987). “Nonlinear uplift analysis of crescent‐shaped plate.” Proc. 1987 Pressure Vessels and Piping Conf. San Diego Calif. 317–324.
4. Hetényi M. (1946). Beams on elastic foundation . The University of Michigan Press Ann Arbor Mich. 66–67.