1. Chaabout S., Chennaoui Aoudjehane H., Reimold W.U., Baratoux D., Youbi N. (2015). Prospecting For Possible Impact Structures In Morocco // Journal of African Earth Sciences.
2. Monika Kumlehn de Mamani & Ingrid Grambow (2019). IMPAKTNAMEN: Namen der [Meteorite; Impakte/Krater; Boliden/Fireballs; Tektite] im Sonnensystem.

Google-Earth image of the Smara site showing the 15 circular and sub-circular structures (Chaabout S. et al., 2015).

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