@article{pellis-optimal-2017,
title = "Material-minimizing forms and structures",
author = "Martin Kilian and Davide Pellis and Johannes Wallner
          and Helmut Pottmann",
journal = "ACM Trans. Graphics",
volume = 36,
year = 2017,
number = 6,
pages = "article 173",
doi = "http://dx.doi.org/10.1145/3130800.3130827",
note="Proc. SIGGRAPH Asia",
}