W. S. Attiah and M. Al-Hasan, “The Generalized Thermodynamical Beltrami – Michell Tensorial Equations for the general Thermodynamical State of the Hooke Body”, JNSLAS, vol. 4, no. 1, pp. 71–60, Mar. 2020, doi: 10.26389/AJSRP.W191019.