@incollection{Butler17,
author = {Leo T. Butler},
title = {Topology and Integrability in Lagrangian Mechanics},
booktitle = {Lagrangian Mechanics},
publisher = {IntechOpen},
address = {Rijeka},
year = {2017},
editor = {Hüseyin Canbolat},
chapter = {3},
doi = {10.5772/66147},
url = {https://doi.org/10.5772/66147}
}