By studying the structure of small clusters of self-interstitials, using local density-functional techniques, models (which reflected structures, energies and vibrational properties) were developed for planar defects (platelets).

Small Aggregates of Interstitials and Models for Platelets in Diamond. J.P.Goss, B.J.Coomer, R.Jones, C.J.Fall, C.D.Latham, P.R.Briddon, S.Öberg: Journal of Physics - Condensed Matter, 2000, 12[49], 10257-61