Civil, Construction and Environmental Engineering - 1967 HAVNER, K. S., & STANTON, E. L. (1967). ON ENERGY-DERIVED DIFFERENCE EQUATIONS IN THERMAL STRESS PROBLEMS. JOURNAL OF THE FRANKLIN INSTITUTE-ENGINEERING AND APPLIED MATHEMATICS, 284(2), 127-&. https://doi.org/10.1016/0016-0032(67)90585-6