1. Present and past pollen records of Lapland forests;Hicks;Rev. Palaeobot. Palynol.,1994
2. Flandrian pollen deposition rates and tree-line history in northern Fennoscandia;Hyväarinen;Boreas,1976
3. Analysis of fossil stomata of conifers as indicators of the alpine tree line fluctuations during the Holocene;Ammann,1993
4. Der pollenanalytische Nachweis von Gletscher- und Klimaschwankungen in Mooren der Ostalpen;Bortenschlager;Ber. Dtsch. Bot. Ges.,1972
5. Ursachen und Ausmass postglazialer Waldgrenzschwankungen in den Ostalpen;Bortenschlager,1978