@article {issack2005geometric,
	title = {Geometric constraints in semiclassical initial value representation calculations in Cartesian coordinates: Accurate reduction in zero-point energy},
	journal = {The Journal of chemical physics},
	volume = {123},
	year = {2005},
	pages = {084103},
	publisher = {AIP},
	author = {Issack, Bilkiss B and Roy, Pierre-Nicholas}
}
