Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Risto Pirjola and Larry Newitt and David Boteler,Modelling the disturbance caused by a dc-electrified railway to geomagnetic measurements,"EPS : Earth, Planets and Space",13438832,Tokyo : Terra Scientific Pub. Co,2007,59,8,943-949,https://cir.nii.ac.jp/crid/1524232505151607936,