Reimold W.U., Koeberl Ch. (2014). Impact structures in Africa: A review // J. Afr. Earth. Sci. 93: 57-175.
Chaabout S., Aoudjehane H.C., Reimold W.U., Baratoux D., Youbi N. (2015). Prospecting For Possible Impact Structures In Morocco // Journal of African Earth Sciences
Monika Kumlehn de Mamani & Ingrid Grambow IMPAKTNAMEN: Namen der [Meteorite; Impakte/Krater; Boliden/Fireballs; Tektite] im Sonnensystem.(2015)

Google-Earth image of the Twihinat (Chaabout S. et al., 2015).