Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) MIMURA Takashi,Early history of HEMT development,Oyo Buturi,03698009,The Japan Society of Applied Physics,2012-08-10,81,8,672-675,https://cir.nii.ac.jp/crid/1390845702289149056,https://doi.org/10.11470/oubutsu.81.8_672