id	domain	url
app01-2431	www.hamamatsu.com	http://www.hamamatsu.com/resources/pdf/ssd/c11208
app01-2431	www.hamamatsu.com	http://www.hamamatsu.com/resources/pdf/ssd/s11028
app01-2431	dx.doi.org	http://dx.doi.org/10.14311/app.2014.01.0311
app01-2431	www.jb.man.ac.uk	http://www.jb.man.ac.uk/pulsar/crab.html
app01-2431	dx.doi.org	http://dx.doi.org/10.1086/665925
app01-2431	dx.doi.org	http://dx.doi.org/10.1016/j.asr.2010.07.016