Uchman A., Hanken N.-M., Nielsen J. K., GrundvÄg S.-A., & Piasecki S. (2016). Depositional environment, ichnological features and oxygenation of Permian to earliest Triassic marine sediments in central Spitsbergen, Svalbard. Polar Research, 35. https://doi.org/10.3402/polar.v35.24782