More, A. F., Spaulding, N. E., Bohleber, P., Handley, M. J., Hoffmann, H., Korotkikh, E. V., …Mayewski, P. A. (2017). Next generation ice core technology reveals true minimum natural levels of lead (Pb) in the atmosphere: insights from the Black Death. GeoHealth, 1(4), 211-219. https://doi.org/10.1002/2017GH000064