Mahotkin, I.L., S.M. Sublukov, D.Z. Zhuravlev, and P.U. Zherdev. 1995. “Geochemistry and Sr-Nd Isotopic Composition of Kimberlites, Melilitites and Basalts from the Arkhangelsk Region, Russia”. International Kimberlite Conference: Extended Abstracts 6 (1):342-44. https://doi.org/10.29173/ikc1886.