URL https://www.researchgate.net/profile/Meng-Hua-Zhu/publication/360045682/figure/fig1/AS:1152694106497028@1651835099688/Global-image-of-Phobos-illustrating-the-grooves-the-zone-of-avoidance-and-the-Stickney_Q320.jpg
URL2 https://www.researchgate.net/figure/Global-image-of-Phobos-illustrating-the-grooves-the-zone-of-avoidance-and-the-Stickney_fig1_360045682
