1. Tectonic Features of the Hecla Hook Formation to the South of St. Jonsfjord, Vestspitsbergen
2. Some remarks on the Reconnaissance Boat Trip from Hornsund, around Sørkapplandet to Kvalvagen, Vestspitsbergen;Siedlecki;Stud. Geol. Polon.,1964
3. Exposures of Hecla Hoek and Younger Rocks on the North Side of Wahlenbergfjorden, Nordaustlandet (Svalbard);Sandford;Norsk Polarinst.,1963
4. Geology of the North-Western Part of Torrell Land, Vestspitsbergen;Rozycki;Stud. Geol. Polon.,1959