American Society of Mechanical Engineers. Transactions of the ASME. Journal of Applied Mechanics (Trans. ASME J. Appl. Mech.) (19910101), 58, no.~4, 1098-1101. ISSN: 0021-8936 (print).eISSN: 1528-9036.
American Society of Mechanical Engineers. Transactions of the ASME. Journal of Applied Mechanics (Trans. ASME J. Appl. Mech.) (19890101), 56, no.~1, 175-178. ISSN: 0021-8936 (print).eISSN: 1528-9036.