Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) KITA Hiroshi,Development of phosphorescent OLED (organic light emitting diode) technology for lighting,Oyo Buturi,03698009,The Japan Society of Applied Physics,2011-04-10,80,4,290-294,https://cir.nii.ac.jp/crid/1390845702289120640,https://doi.org/10.11470/oubutsu.80.4_290