@article {li2013analytic,
	title = {Analytic Morse/long-range potential energy surfaces and predicted infrared spectra for CO{\textendash}H2 dimer and frequency shifts of CO in (para-H2) NN= 1{\textendash}20 clusters},
	journal = {The Journal of chemical physics},
	volume = {139},
	number = {16},
	year = {2013},
	pages = {164315},
	publisher = {American Institute of Physics},
	author = {Li, Hui and Zhang, Xiao-Long and Le Roy, Robert J and Roy, Pierre-Nicholas}
}
