@article {roy2003energy,
	title = {Energy levels and wave functions of weakly bound bosonic trimers using Pekeris coordinates and a symmetry-adapted Lanczos approach},
	journal = {The Journal of chemical physics},
	volume = {119},
	number = {11},
	year = {2003},
	pages = {5437{\textendash}5443},
	publisher = {American Institute of Physics},
	author = {Roy, Pierre-Nicholas}
}
