@inproceedings{watson2009piezoelectric,
  title = {Piezoelectric ultrasonic resonant micromotor with a volume of less than 1 mm 3 for use in medical microbots},
  booktitle = {Robotics and Automation, 2009. ICRA'09. IEEE International Conference on},
  pages = {2225--2230},
  organization = {IEEE},
  year = {2009},
  slug = {watson2009piezoelectric},
  author = {Watson, Brett and Friend, James and Yeo, Leslie and Sitti, Metin}
}