Hardy, K., Buckley, S., Collins, M.J. & et al. (2012). Neanderthal medics? Evidence for food, cooking, and medicinal plants entrapped in dental calculus. Naturwissenschaften, 99(8), pp 617-626. DOI: 10.1007/s00114-012-0942-0
Hardy, K., Buckley, S., Rosas, A. & et al. (2016). Neanderthals, trees and dental calculus: new evidence from El Sidrón. Antiquity 90(350), pp 290-301. DOI: http://dx.doi.org/10.15184/aqy.2016.21