@book{36494,
	author = {Karpf, David,},
	title = {The MoveOn effect : the unexpected transformation of American political advocacy /},
	publisher = {Oxford University Press,},
	year = {2012.},
	series = {Oxford studies in digital politics},
	address = {New York ;},
	url = {http://dx.doi.org/10.1093/acprof:oso/9780199898367.001.0001}
}