Mørk A., Elvebakk G., Forsberg A. W., Hounslow M. W., Nakrem H. A., Os Vigran J., and Weitschat W. “The Type Section of the Vikinghøgda Formation: A New Lower Triassic Unit in Central and Eastern Svalbard”. Polar Research, vol. 18, no. 1, Jan. 1999, pp. 51-82, doi:10.3402/polar.v18i1.6558.