Haremo P., Andresen A., Dypvik H., Nagy J., Elverhøi A., Eikeland T. A., and Johansen H. “Structural Development Along the Billefjorden Fault Zone in the Area Between Kjellströmdalen and Adventdalen/Sassendalen, Central Spitsbergen”. Polar Research, vol. 8, no. 2, Jan. 1990, pp. 195-16, doi:10.3402/polar.v8i2.6812.