Dypvik H., Hvoslef S., Bjærke T., and Finnerud E. “The Wilhelmøya Formation (Upper Triassic-Lower Jurassic) at Bohemanflya, Spitsbergen”. Polar Research, vol. 3, no. 2, Jan. 1985, pp. 155-6, doi:10.3402/polar.v3i2.6949.