LICENSE

This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by-sa/4.0/.

All used work is referenced in the [bib file](references.bib).  Actually, I
couldn't find the license for Bulatov's ``conformal hyperbolic geometry''
visualizations, but presumed it's CC with attribution...