Warinner, C.; Speller, C.; Collins, M. J. . (2014). A new era in palaeomicrobiology: prospects for ancient dental calculus as a long-term record of the human oral microbiome. Philosophical Transactions of the Royal Society B: Biological Sciences, 370(1660), 20130376–20130376.
doi:10.1098/rstb.2013.0376
