A. N. Larionov, A. M. Tebenkov, and D. G. Gee, “Pb-Pb single-zircon single grain ages of granitoid boulders from the Vendian tillite of Wahlenbergfjorden, Nordaustlandet, Svalbard”, polar, vol. 17, no. 1, pp. 71-80, Jan. 1998.