@inproceedings{DBLP:conf/icra/HurstCR04,
  author    = {Jonathan W. Hurst and
               Joel E. Chestnutt and
               Alfred A. Rizzi},
  title     = {An Actuator with Physically Variable Stiffness for Highly
               Dynamic Legged Locomotion},
  booktitle = {ICRA},
  year      = {2004},
  pages     = {4662-4667},
  ee        = {http://dx.doi.org/10.1109/ROBOT.2004.1302453},
  crossref  = {DBLP:conf/icra/2004},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}

@proceedings{DBLP:conf/icra/2004,
  title     = {Proceedings of the 2004 IEEE International Conference on
               Robotics and Automation, ICRA 2004, April 26 - May 1, 2004,
               New Orleans, LA, USA},
  booktitle = {ICRA},
  publisher = {IEEE},
  year      = {2004},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}