@inproceedings{weko_181118_1, author = "長野,晋平 and 和田,雅昭", title = "作業船位置情報の取得と活用", booktitle = "第79回全国大会講演論文集", year = "2017", volume = "2017", number = "1", pages = "25--26", month = "mar" }