Markov K, Ilieva K. A note on the $C^{2}$-term of the effective conductivity for random dispersions. Ann. Sofia Univ. Fac. Math. and Inf. [Internet]. 1993 Dec. 12 [cited 2024 Nov. 24];84:123-38. Available from: https://ftl5.uni-sofia.bg./index.php/fmi/article/view/475