https://katalog.hfmdd.de/Record/dswarm-126-Y3JkZWdydXl0b3BlbjoxMC40MjAyL3BwcmVzLjIwMTAuMDg DobiƄski, Wojciech:
Geophysical characteristics of permafrost in the Abisko area, northern Sweden. : Walter de Gruyter GmbH, 2010.