| Authors | Year | Title | Publisher |
| Nobugai K, Tokonami M & Morimoto N | 1978 | A study of subsolidus relations of the Skaergaard pyroxenes by analytical electron microscopy | Contributions to Mineralogy and Petrology 67, p. 111-118 |
| Nobugai K & Morimoto N | 1979 | Formation mechanism of pigeonite lamellae in Skaergaard augite | Physics and Chemistry of Minerals 4, p. 361-371 |