Design of stable wireless sensor network for slope monitoring. - Yuki Nishikawa; Takuya Sasamura; Yoichi Ishizuka; Satoshi Sugimoto; Shohei Iwasaki; Hongyan Wang; Tomoyuki Fujishima; Takafumi Fujimoto; Koichiro Yamashita; Takahisa Suzuki; Koji Kurihara (WiSNet, 2018)