I. P. Markov, A. A. Ipatov, A. A. Belov, and S. Y. Litvinchuk, “Boundary element formulation for 3D dynamic problems of anisotropic viscoelasticity and isotropic poroviscoelasticity”, ВМСС, vol. 9, no. 4, pp. 466–475, Dec. 2016, doi: 10.7242/1999-6691/2016.9.4.39.