A lichenometrical study of snow patch variation in the Frederikshåb district, South-West Greenland, and its implications for studies of climatic and glacial fluctuations. bullggu [Internet]. 1973 Aug. 10 [cited 2025 Nov. 11];104:1-31. Available from: https://geusjournals.org/index.php/bullggu/article/view/6645