id	domain	url
commonwealth-118	dx.doi.org	http://dx.doi.org/10.15367/cjppp.v18i2.118
commonwealth-118	www.cnn.com	http://www.cnn.com/election/2008/primaries/results/epolls/#padem
commonwealth-118	www.cnn.com	http://www.cnn.com/election/primaries/states/pa/dem
commonwealth-118	www.cnn.com	http://www.cnn.com/election/2008/primaries
commonwealth-118	www.cnn.com	http://www.cnn.com/election/primaries/states/pa/dem