Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) NAKANO Toshiaki,Trends of mobile phone map services,Proceedings of the Annual Conference of the Institute of Image Electronics Engineers of Japan,2436-4371,The Institute of Image Electronics Engineers of Japan,2006,34,0,139-141,https://cir.nii.ac.jp/crid/1390001205609522560,https://doi.org/10.11371/aiieej.34.0.139.0