Collaborative Ground-Aerial Multi-Robot System for Disaster Response Missions with a Low-Cost Drone Add-On for Off-the-Shelf Drones. - Shalutha Rajapakshe; Dilanka Wickramasinghe; Sahan Gurusinghe; Deepana Ishtaweera; Bhanuka Silva; Peshala Jayasekara; Nick Panitz; Paul Flick; Navinda Kottege (ICARSC, 2023)