@book{13320,
	author = {Jean, Yves, and Volatron, François.},
	title = {An introduction to molecular orbitals /},
	publisher = {Oxford University Press,},
	year = {1993.},
	address = {New York :},
	url = {http://www.loc.gov/catdir/enhancements/fy0602/92045676-d.html}
}