@article {harland2003initial,
	title = {An initial value representation semiclassical approach for the study of molecular systems with geometric constraints},
	journal = {The Journal of chemical physics},
	volume = {118},
	year = {2003},
	pages = {4791{\textendash}4806},
	publisher = {AIP},
	author = {Harland, Ben B and Roy, Pierre-Nicholas}
}
