BibTeX: 
@article{Sturm_SequencesAFP,
author = {Manuel Eberl},
title = {Sturm's Theorem},
journal = {Archive of Formal Proofs},
month = jan,
year = 2014,
note = {\url{http://isaafp.org/entries/Sturm_Sequences.shtml},
Formal proof development},
ISSN = {2150914x},
}
