Yamazaki, Dai G.Dai G.YamazakiIchiki, KiyotomoKiyotomoIchikiKajino, ToshitakaToshitakaKajinoMathews, Grant J.Grant J.Mathews2012-07-182018-06-282012-07-182018-06-282010http://ntur.lib.ntu.edu.tw//handle/246246/242166en-USNew constraints on the primordial magnetic fieldjournal article10.1103/PhysRevD.81.023008http://ntur.lib.ntu.edu.tw/bitstream/246246/242166/-1/17.pdf