**Phobos maps:**

https://astrogeology.usgs.gov/search/map/Phobos/Viking/Phobos\_Viking\_ Mosaic\_40ppd\_DLRcontrol

https://astrogeology.usgs.gov/search/map/Phobos/MarsExpress/SRC/Phobos\_ ME\_SRC\_Mosaic\_Global\_16ppd

https://www.sciencedirect.com/science/article/abs/pii/S0032063313001293
