Bokalo, M. M., and V. M. Dmytriv. “Fourier Problem for a Coupled Diffusion System With Functionals”. Ukrains’kyi Matematychnyi Zhurnal 53, no. 11 (November 25, 2001): 1468–1481. Accessed February 17, 2026. https://umj.imath.kiev.ua/index.php/umj/article/view/4366.