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Fritz, P.; Morgan, A. V.; Eicher, U.; McAndrews, J. H. (1987). Stable isotope, fossil coleoptera and pollen stratigraphy in late quaternary sediments from Ontario and New York State. Palaeogeography, Palaeoclimatology, Palaeoecology, 58(3-4), pp. 183-202. Elsevier 10.1016/0031-0182(87)90059-9
