Davies, S., COULTER, S. E., PILCHER, J. R., HALL, V. A., & PLUNKETT, G. (2010). Testing the reliability of the JEOL FEGSEM 6500F electron microprobe for quantitative major element analysis of glass shards from rhyolitic tephra. Boreas, 39(1), pp. 163-169. doi:10.1111/j.1502-3885.2009.00113.x

Davies, Siwan, SARAH E. COULTER, JONATHAN R. PILCHER, VALERIE A. HALL, and GILL PLUNKETT. "Testing the Reliability of the JEOL FEGSEM 6500F Electron Microprobe for Quantitative Major Element Analysis of Glass Shards From Rhyolitic Tephra." Boreas 39, no. 1 (2010): 163-169.

Davies, Siwan, et al. "Testing the Reliability of the JEOL FEGSEM 6500F Electron Microprobe for Quantitative Major Element Analysis of Glass Shards From Rhyolitic Tephra." Boreas 39.1 (2010): 163-169.