Tichomirowa et al. 2006
Tichomirowa M., Grosche G., Gotze J., Belyatsky B.V., Savva E.V., Keller J., Todt W. The mineral isotope composition of two Precambrian carbonatite complexes from the Kola Alkaline Province - Alteration versus primary magmatic signatures // Lithos, 2006, V. 91, p. 229-249.