Aasma Khan Nadeem Javaid Ghazanfar Latif Obaida Abdul Karim Faisal Hayat Zahoor Ali Khan Void Hole and Collision Avoidance in Geographic and Opportunistic Routing in Underwater Wireless Sensor Networks. 225-236 2018 EIDWT https://doi.org/10.1007/978-3-319-75928-9_20 conf/eidwt/2018 db/conf/eidwt/eidwt2018.html#KhanJLKHK18