Polevikov, Viktor, and Lutz Tobiska. “On the Solution of the steady‐state Diffusion Problem for Ferromagnetic Particles in a Magnetic Fluid”. Mathematical Modelling and Analysis 13, no. 2 (June 30, 2008): 233-240. Accessed January 6, 2025. https://mla.vgtu.lt/index.php/MMA/article/view/7006.