Mahotkin, I. et al. 1995. Geochemistry and Sr-Nd isotopic composition of kimberlites, melilitites and basalts from the Arkhangelsk region, Russia. International Kimberlite Conference: Extended Abstracts. 6, 1 (Sep. 1995), 342–344. DOI:https://doi.org/10.29173/ikc1886.