@article { ISI:A1969D136100006,
	title = {ON ORDER OF ACCURACY OF BORN-OPPENHEIMER APPROXIMATION FOR MOLECULAR COLLISION STATES},
	journal = {PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES},
	volume = {309},
	year = {1969},
	pages = {221-\&},
	doi = {10.1098/rspa.1969.0039},
	author = {Gerber, R. B.}
}
