Hughes, T. J. R., Gartling, D. K., & Spilker, R. L. (1981). New concepts in finite element analysis: Presented at the Applied Mechancis Conference, Boulder, Colorado, June 22-24, 1981. New York, N.Y. (United Engineering Center, 345 E. 47th St., New York 10017): American Society of Mechanical Engineers.

Hughes, Thomas J. R., David K. Gartling, and Robert L. Spilker. New Concepts in Finite Element Analysis: Presented At the Applied Mechancis Conference, Boulder, Colorado, June 22-24, 1981. New York, N.Y. (United Engineering Center, 345 E. 47th St., New York 10017): American Society of Mechanical Engineers, 1981.

Hughes, Thomas J. R., David K. Gartling, and Robert L. Spilker. New Concepts in Finite Element Analysis: Presented At the Applied Mechancis Conference, Boulder, Colorado, June 22-24, 1981. New York, N.Y. (United Engineering Center, 345 E. 47th St., New York 10017): American Society of Mechanical Engineers, 1981.