Gradient diffusion in ferrofluids with chain aggregates Ilya O. Starodumov, Sergei P. Fedotov, Larisa Yu. Iskakova and Andrey Yu. Zubarev Eur. Phys. J. Spec. Top., 231 6 (2022) 1175-1180 Published online: 19 March 2022 DOI: 10.1140/epjs/s11734-022-00524-7