@article {1311581,
	title = {Differentiating Functional Groups with the Scanning Tunneling Microscope},
	journal = {J. Phys. Chem.},
	volume = {99},
	year = {1995},
	note = {452},
	pages = {8684-8689},
	author = {Venkataraman, B. and Flynn, G. W. and Wilbur, J.L. and Folkers, J.P. and Whitesides, G. M.}
}
