OECD (2021), "56 Wadding, felt and nonwovens; special yarns; twine, cordage, ropes, cables etc.: Norway: Harmonised System 2012", in International Trade by Commodity Statistics Volume 2020 Issue 5: Estonia, Israel, Latvia, Lithuania, Netherlands, Norway, Poland, OECD Publishing, Paris, https://doi.org/10.1787/d6e3df96-en.