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van der Valk T, Pečnerová P, Díez-Del-Molino D, Bergström A, Oppenheimer J, Hartmann S, ve diğerleri. (March 2021). "Million-year-old DNA sheds light on the genomic history of mammoths". Nature. 591 (7849). ss. 265-269. Bibcode:2021Natur.591..265V. doi:10.1038/s41586-021-03224-9. PMC7116897 $2. PMID33597750.
van der Valk T, Pečnerová P, Díez-Del-Molino D, Bergström A, Oppenheimer J, Hartmann S, ve diğerleri. (March 2021). "Million-year-old DNA sheds light on the genomic history of mammoths". Nature. 591 (7849). ss. 265-269. Bibcode:2021Natur.591..265V. doi:10.1038/s41586-021-03224-9. PMC7116897 $2. PMID33597750.
Allentoft ME, Collins M, Harker D, Haile J, Oskam CL, Hale ML, ve diğerleri. (December 2012). "The half-life of DNA in bone: measuring decay kinetics in 158 dated fossils". Proceedings. Biological Sciences. 279 (1748). ss. 4724-33. doi:10.1098/rspb.2012.1745. PMC3497090 $2. PMID23055061.
van der Valk T, Pečnerová P, Díez-Del-Molino D, Bergström A, Oppenheimer J, Hartmann S, ve diğerleri. (March 2021). "Million-year-old DNA sheds light on the genomic history of mammoths". Nature. 591 (7849). ss. 265-269. Bibcode:2021Natur.591..265V. doi:10.1038/s41586-021-03224-9. PMC7116897 $2. PMID33597750.