Energy efficient clustering protocol for early warning system for miner's safety in coal mines. - K. A. Unnikrishna Menon; Deepa Maria; Hemalatha Thirugnanam (WOCC, 2012)

Power optimization strategies for wireless sensor networks in coal mines. - K. A. Unnikrishna Menon; Deepa Maria; Hemalatha Thirugnanam (WOCN, 2012)