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Moutsoulas, M. & Preka, P. (1981). "Morphological characteristics of lunar craters with moderate depth/diameter ratio I. /0.08 is less than d/D is less than 0.12/". Moon and the Planets. 25 (1): 51–66, 62. Bibcode:1981M&P....25...51M. doi:10.1007/BF00911808. S2CID128027510.