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Lorch Y, LaPointe JW, Kornberg RD (tháng 4 năm 1987). “Nucleosomes inhibit the initiation of transcription but allow chain elongation with the displacement of histones”. Cell. 49 (2): 203–10. doi:10.1016/0092-8674(87)90561-7. PMID3568125.
Clarke HJ (1992). “Nuclear and chromatin composition of mammalian gametes and early embryos”. Biochemistry and Cell Biology. 70 (10–11): 856–66. doi:10.1139/o92-134. PMID1297351.