Kiilerich, A. 1939. “Ad. S. Jensen: Concerning a Change of Climale During Recent Decades in the Arclic and Subarclic Regions, from Greenland in Ihe West to Eurasia in the East, and Contemporary Biological and Geophysical Changes. 76 S. (15X23 cm), 1 Figur, 2 Kort. Det Kgl. Danske Videnskabernes Selskab. Biologiske Medd. XIV, 8. Munksgaards Forlag. København 1939. Pris 3,00 Kr.”. Geografisk Tidsskrift 42 (januar). https://tidsskrift.dk/geografisktidsskrift/article/view/48248.