What makes a Tree a Straight Skeleton?

Oswin Aichholzer, Howard Cheng, Satyan L. Devadoss, Thomas Hackl, Stefan Huber, Brian Li, Andrej Risteski. What makes a Tree a Straight Skeleton?. In Proceedings of the 24th Canadian Conference on Computational Geometry, CCCG 2012, Charlottetown, Prince Edward Island, Canada, August 8-10, 2012. pages 253-258, 2012. [doi]

@inproceedings{AichholzerCDHHLR12,
  title = {What makes a Tree a Straight Skeleton?},
  author = {Oswin Aichholzer and Howard Cheng and Satyan L. Devadoss and Thomas Hackl and Stefan Huber and Brian Li and Andrej Risteski},
  year = {2012},
  url = {http://2012.cccg.ca/papers/paper30.pdf},
  researchr = {https://researchr.org/publication/AichholzerCDHHLR12},
  cites = {0},
  citedby = {0},
  pages = {253-258},
  booktitle = {Proceedings of the 24th Canadian Conference on Computational Geometry, CCCG 2012, Charlottetown, Prince Edward Island, Canada, August 8-10, 2012},
}