id	domain	url
dem-14954	www.dem.umk.pl	http://www.dem.umk.pl/dem
dem-14954	dx.doi.org	http://dx.doi.org/10.12775/dem.2017.005
dem-14954	dx.doi.org	http://dx.doi.org/10.1007/978-1-4757-2526-1
dem-14954	dx.doi.org	http://dx.doi.org/10.1007/978-1-4757-2526-1
dem-14954	dx.doi.org	http://dx.doi.org/10.2307/2527341
dem-14954	dx.doi.org	http://dx.doi.org/10.1111/j.1540-6261.1993.tb05128.x
dem-14954	dx.doi.org	http://dx.doi.org/10.1214/aos/1176344136
dem-14954	www.polpx.pl	www.polpx.pl
dem-14954	dx.doi.org	http://dx.doi.org/10.2307/2527341
dem-14954	dx.doi.org	http://dx.doi.org/10.1111/j.1540-6261.1993.tb05128.x
dem-14954	dx.doi.org	http://dx.doi.org/10.1214/aos/1176344136