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Jousé, A.P. ; Mukhina, V.V. (1978). Diatom units and the paleogeography of the Black Sea in the Late Cenozoic (DSDP, Leg 42B). In: Ross, D.A., Neprochnov, Y.P., et al., Initial Reports of the Deep Sea Drilling Project, vol. 42, Part 2. Washington (U.S. Government Printing Office). 42(part 2): 903-950.