1. GeoEye-1 satellite sensor (2020). https://www.satimagingcorp.com/satellite-sensors/geoeye-1/
2. OpenStreetMap (2020) https://www.openstreetmap.org/
3. Tomnod (2019) http://blog.maxar.com/news-events/2019/in-the-blink-of-an-eye-looking-back-onnine-years-with-tomnod
4. Anatomy of a catastrophe (2017) https://www.planet.com/insights/anatomy-of-a-catastrophe/
5. Unsupervised flood mapping (2017) http://gbdxstories.digitalglobe.com/flood-water/