id	domain	url
commonwealth-180	dx.doi.org	http://dx.doi.org/10.15367/com.v20i1.180
commonwealth-180	www.electionstudy.org	www.electionstudy.org]
commonwealth-180	www.electionstudy.org	www.electionstudy.org]
commonwealth-180	www.ncsl.org	http://www.ncsl.org/research