@article {cuervo2006path,
	title = {Path integral ground state study of finite-size systems: Application to small (parahydrogen) N (N= 2{\textendash}20) clusters},
	journal = {The Journal of chemical physics},
	volume = {125},
	year = {2006},
	pages = {124314},
	publisher = {AIP},
	author = {Cuervo, Javier Eduardo and Roy, Pierre-Nicholas}
}
