Khalaquzzaman, M., B.-X. Xu, S. Ricker, and R. Müller. 2019. “Computational Homogenization of Piezoelectric Materials Using FE2 to Determine Configurational Forces”. Technische Mechanik - European Journal of Engineering Mechanics 32 (1):21-37. https://journals.ub.ovgu.de/index.php/techmech/article/view/678.