BibTeX: 
@article{Chord_SegmentsAFP,
author = {Lukas Bulwahn},
title = {Intersecting Chords Theorem},
journal = {Archive of Formal Proofs},
month = oct,
year = 2016,
note = {\url{http://isaafp.org/entries/Chord_Segments.shtml},
Formal proof development},
ISSN = {2150914x},
}
