Markov, K. and Zvyatkov, K. (1991) “ON THE EFFECTIVE BEHAVIOUR OF A NONLINEAR DISPERION OF SPHERES”, Ann. Sofia Univ. Fac. Math. and Inf, 82(2), pp. 179–192. Available at: https://ftl5.uni-sofia.bg/index.php/fmi/article/view/543 (Accessed: 5 December 2024).