@article{Hagemann2006,
  author    = {Hans-J{\"u}rgen Hagemann},
  title     = {Reduction of hysteresis losses of ferroelectric BaTiO3. Hagemann, H. J.},
  journal   = {Ferroelectrics. 22 (1978)},
  pages     = {743 -- 743},
  year      = {2006},
}