Frei, D., Hollis, J. A., Gerdes, A., Harlov, D., Karlsson, C., Vasquez, P., Franz, G., Johansson, L. and Knudsen, C. (2006) “Advanced in situ geochronological and trace element microanalysis by laser ablation techniques”, GEUS Bulletin. Copenhagen, Denmark, 10, pp. 25–28. doi: 10.34194/geusb.v10.4884.