Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI)
Nagano Katsumi and Masunari Kazutoshi,Transformation of keypad design by NTT docomo,design research,13423061,Society for Design and Art Fusing with Science and Technology,2017,74,0,76-83,https://cir.nii.ac.jp/crid/1390282763080081920,https://doi.org/10.24520/designresearch.74.0_76