[1]
“Method of variational imbedding for identification of heat-conduction coefficient from overposed boundary data”, Ann. Sofia Univ. Fac. Math. and Inf., vol. 91, pp. 215–225, Dec. 1999, Accessed: Jan. 11, 2026. [Online]. Available: https://annual.uni-sofia.bg/index.php/fmi/article/view/280