The following publications are possibly variants of this publication:
- Using Multiple Barometers to Detect the Floor Location of Smart Phones with Built-in Barometric Sensors for Indoor PositioningHao Xia, Xiaogang Wang, YanYou Qiao, Jun Jian, Yuanfei Chang. sensors, 15(4):7857-7877, 2015. [doi]
- Indoor-Outdoor Detection Using a Smart Phone SensorWeiping Wang 0002, Qiang Chang, Qun Li, Zesen Shi, Wei Chen. sensors, 16(10):1563, 2016. [doi]