@misc{a2024a,
  title = {Two displacive ferroelectric phase transitions in multiferroic quadruple perovskite 
  BiMn7O12},
  author = {A. Maia, M. Kempa, V. Bovtun, R. Vilarinho, C. Kadlec, J. Agostinho Moreira, A. A. Belik, P. Proschek, S. Kamba},
  publisher = {American Physical Society (APS)},
  year = {2024-04-25},
  keywords = {BiMn7O12, perovskites, multiferroic, ferroelectric transition}
}