Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) HOSHINO Tomoya and YAMAMOTO Hiroshi and YAMAZAKI Katsuyuki,Development and Evaluation of Lost-Child Prevention and Visitor Observation System in Large Park Utilizing ZigBee Mesh Network,電子情報通信学会論文誌B 通信,1881-0209,電子情報通信学会,2021-03-01,J104-B,3,249-260,https://cir.nii.ac.jp/crid/1390850247501130240,https://doi.org/10.14923/transcomj.2020gwp0009