S. Aghajanian, G. Rao, P. Koulountzios, L. Jackowska-Strumillo, M. Soleimani, T. Koiranen, Towards Real-time Control of a Semibatch Crystallization Process by Electrical and Ultrasound Tomographic Techniques, Chemical Engineering Transactions. 86 (2021) 307-312. doi:10.3303/CET2186052.