@inproceedings{oai:ipsj.ixsq.nii.ac.jp:00138949, book = {全国大会講演論文集}, issue = {ネットワーク}, month = {Mar}, pages = {139--140}, publisher = {情報処理学会}, title = {GPS難受信エリアの自律的検出と補正機能の提案}, volume = {第71回}, year = {2009} }