NOSOVA, Maria, SEVEROVA, Elena and VOLKOVA, Olga. Spruce and broadleaved trees pollen percentages and PAR values in the European part of Russia: 9 years of pollen trap monitoring implemented to the fossil data. Ecological Questions. Online. 23 August 2017. Vol. 26, pp. 9-13. [Accessed 18 July 2024]. DOI 10.12775/EQ.2017.009.