Nechaev, Yury S. “Anomalies of the Fickian Diffusion During 2D-Decomposition of Superconducting YBa 2 Cu 3 O 6+X Y 2 BaCuO 5 Composites”. Diffusion Fundamentals, vol. 4, Jan. 2006, doi:10.62721/diffusion-fundamentals.4.36.