1. Burgener J.A. (2015). 23.4° Massive elliptical comet impact craters on Earth.
2. Monika Kumlehn de Mamani & Ingrid Grambow (2019). IMPAKTNAMEN: Namen der [Meteorite; Impakte/Krater; Boliden/Fireballs; Tektite] im Sonnensystem.

23.4° features in Europe and Asia (Burgener J.A., 2015).

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