1. Tertiary ring structures in Britain;Richey;Trans. Geol. Soc.,1932
2. The Tertiary Igneous Rocks of Skye;Harker;Mem. Geol. Survey of United Kingdom,1904
3. Geological Investigation in East Greenland;Wager;Meddel. om Grønland,1935
4. Geological Investigations in East Greenland;Wager;Meddel. om Grønland,1934