Ulf Büntgen, Nicola Di Cosmo: Climatic and environmental aspects of the Mongol withdrawal from Hungary in 1242 CE. Scientific Reports, 26.5.2016, 6. vsk, nro 1, s. 25606. doi:10.1038/srep25606ISSN 2045-2322Artikkelin verkkoversio. (englanti)
Ulf Büntgen, Nicola Di Cosmo: Climatic and environmental aspects of the Mongol withdrawal from Hungary in 1242 CE. Scientific Reports, 26.5.2016, 6. vsk, nro 1, s. 25606. doi:10.1038/srep25606ISSN 2045-2322Artikkelin verkkoversio. (englanti)
Ulf Büntgen, Nicola Di Cosmo: Climatic and environmental aspects of the Mongol withdrawal from Hungary in 1242 CE. Scientific Reports, 26.5.2016, 6. vsk, nro 1, s. 25606. doi:10.1038/srep25606ISSN 2045-2322Artikkelin verkkoversio. (englanti)