Huber, R. S., Kim, N., Renshaw, C. E., Renshaw, P. F. and Kondo, D. G. (2014) “Relationship between altitude and lithium in groundwater in the United States of America: results of a 1992-2003 study”, Geospatial Health, 9(1), pp. 231-235. doi: 10.4081/gh.2014.20.