@inproceedings{sbim2013sp,
  title = {Surface Patches for 3D Sketching},
  author = {Fatemeh Abbasinejad and Pushkar Joshi and Cindy Grimm and Nina Amenta},
  booktitle = {Sketch-based interfaces and modeling (Expressive 2013)},
  pages = {53-60},
  publisher = {ACM},
  month = {July},
  year = {2013}
}