Forsström, L. (1990). «Occurrence of larch (Larix) in Fennoscandia during the Eemian interglacial and the Brørup interstadial according to pollen analytical data». Boreas. 19 (3): 241–248. ISSN1502-3885. doi:10.1111/j.1502-3885.1990.tb00449.x.
Postigo, J.M. m.fl. (2010). «Patterns of extinction and persistence of Arctotertiary flora in Iberia during the Quaternary». Review of Palaeobotany and Palynology. 162 (3): 416–426. ISSN0034-6667. doi:10.1016/j.revpalbo.2010.02.015.
Turner, C. (2000). «The Eemian interglacial in the North European Plain and adjacent areas». Geologie en Mijnbouw. 79 (2/3): 217–231. ISSN1573-9708. doi:10.1017/S0016774600023660.
Follieri, M. og Magri, D. (2001). «Middle and Upper Pleistocene natural environment in the Roman area: climate, vegetation and landscape». I Cavarretta, G., Gioia, P., Mussi, M., og Palombo, M.R. La Terra degli Elefanti: The World of Elephants(PDF). Roma: Consiglio Nazionale delle Ricerche. s. 43–47. ISBN88-8080-025-6.CS1-vedlikehold: Flere navn: forfatterliste (link)[død lenke]
Forsström, L. (1990). «Occurrence of larch (Larix) in Fennoscandia during the Eemian interglacial and the Brørup interstadial according to pollen analytical data». Boreas. 19 (3): 241–248. ISSN1502-3885. doi:10.1111/j.1502-3885.1990.tb00449.x.
Postigo, J.M. m.fl. (2010). «Patterns of extinction and persistence of Arctotertiary flora in Iberia during the Quaternary». Review of Palaeobotany and Palynology. 162 (3): 416–426. ISSN0034-6667. doi:10.1016/j.revpalbo.2010.02.015.
Turner, C. (2000). «The Eemian interglacial in the North European Plain and adjacent areas». Geologie en Mijnbouw. 79 (2/3): 217–231. ISSN1573-9708. doi:10.1017/S0016774600023660.