A low cost fully autonomous GPS (Global Positioning System) based quad copter for disaster management. - Himadri Nath Saha; Srijita Basu; Supratim Auddy; Ratul Dey; Arnab Nandy; Debjit Pal; Nirjhar Roy; Subhadeep Jasu; Ankita Saha; Soummyo Priyo Chattopadhyay; Tamanna Maity (CCWC, 2018)