Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Kusano Koshiro,Concept of Digital Library Optimized for Smartphone Use,Computer & Education,21862168,CIEC,2020-06-01,48,0,37-41,https://cir.nii.ac.jp/crid/1390568456334847872,https://doi.org/10.14949/konpyutariyoukyouiku.48.37