GRYSHCHUK, Serhii; ROGOSIN, Sergei. Effective conductivity of 2D disk – ring composite material. Mathematical Modelling and Analysis, [S. l.], v. 18, n. 3, p. 386–394, 2013. DOI: 10.3846/13926292.2013.804890. Disponível em: https://journals.vilniustech.lt/index.php/MMA/article/view/4121. Acesso em: 19 may. 2025.