1. Hartmann, A. & Baker, A. Modelling karst vadose zone hydrology and its relevance for paleoclimate reconstruction. Earth Sci. Rev. 172, 178–192 (2017).
2. Lachinet, M. S. Climatic and environmental controls on speleothem oxygen-isotope values. Quatern. Sci. Rev. 28, 314–432 (2009).
3. Fairchild, I. J. & Baker, A. Speleothem Science: from Process to Past Environments. (John Wiley & Sons, 2012).
4. Smart, P. L. & Friederich, H. Water movement and storage in the unsaturated zone of a maturely karstified carbonate aquifer, Mendip Hills, England. in Proceedings of the Environmental Problems in Karst Terranes and Their Solutions Conference. 56–87 (National Water Well Association, Dublin OH, 1987).
5. Pitty, A. An Approach to the Study of Karst Water Vol. 5 (University of Hull Occasional Papers in Geography, 1966).