@article{ball_smith_kim_seelecke_2007, title={A stress-dependent hysteresis model for ferroelectric materials}, volume={18}, DOI={10.1177/1045389X07070937}, number={1}, journal={Journal of Intelligent Material Systems and Structures}, author={Ball, B. L. and Smith, R. C. and Kim, S. J. and Seelecke, S.}, year={2007}, pages={69–88} }
 @article{seelecke_kim_ball_smith_2005, title={A rate-dependent two-dimensional free energy model for ferroelectric single crystals}, volume={17}, DOI={10.1007/s00161-005-0207-7}, number={4}, journal={Continuum Mechanics and Thermodynamics}, author={Seelecke, S. and Kim, S. J. and Ball, B. L. and Smith, R. C.}, year={2005}, pages={337–350} }