Kent, R.W., et al. “Mafic Alkaline Intrusions in the Damodar Valley, India: The Micaceous Kimberlite-Lamproite Connection Revisited”.
International Kimberlite Conference: Extended Abstracts
, vol. 7, no. 1, Apr. 1998, pp. 411-3, doi:10.29173/ikc2751.