Shishi Zhang Wenchi Cheng Statistical QoS Provisioning for UAV-Enabled Emergency Communication Networks. 1-6 2019 GLOBECOM Workshops https://doi.org/10.1109/GCWkshps45667.2019.9024517 conf/globecom/2019w db/conf/globecom/globecom2019w.html#ZhangC19