@article {1340724,
	title = {Formation of Protein Charge Ladders by Acylation of Amino Groups on Proteins},
	journal = {J. Am. Chem. Soc.},
	volume = {119},
	year = {1997},
	note = {567},
	pages = {12701-12709},
	author = {Colton, I. J. and J. R. Anderson and Gao, J. and Chapman, R. G. and Isaacs, L. and Whitesides, G. M.}
}
