@article{AssagraAltafimdoCarmoetal.2020,
  author    = {Yuri A.O. Assagra and Ruy Alberto Pisani Altafim and Joao P. do Carmo and Ruy A.C. Altafim and Dmitry Rychkov and Werner Wirges and Reimund Gerhard},
  title     = {A new route to piezo-polymer transducers: 3D printing of polypropylene ferroelectrets},
  journal   = {IEEE transactions on dielectrics and electrical insulation},
  volume    = {27},
  number    = {5},
  pages     = {1668 -- 1674},
  doi       = {10.1109/TDEI.2020.008461},
  year      = {2020},
}