id	domain	url
ap-1988	ojs.cvut.cz	http://ojs.cvut.cz/ojs/index.php/ap
ap-1988	dx.doi.org	http://dx.doi.org/10.14311/ap.2013.53.0786
ap-1988	ojs.cvut.cz	http://ojs.cvut.cz/ojs/index.php/ap
ap-1988	www.mpi-hd.mpg.de	http://www.mpi-hd.mpg.de/gerda/proposal.pdf
ap-1988	www.canberra.com	http://www.canberra.com/products/485.asp
ap-1988	www.mpi-hd.mpg.de	http://www.mpi-hd.mpg.de/gerda/proposal.pdf
ap-1988	www.canberra.com	http://www.canberra.com/products/485.asp