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Tree rings reveal dry conditions during Charlemagne's Fossa Carolina construction in 793 CE
- 1.MUIGG, B., SEIM, A., TEGEL, W., WERTHER, L., HERZIG, F., SCHMIDT, J., ZIELHOFER, C., LANDA, A., BÜNTGEN, Ulf. Tree rings reveal dry conditions during Charlemagne's Fossa Carolina construction in 793 CE. Quaternary Science Reviews. 2020, 227(JAN 2020), 106040. ISSN 0277-3791. E-ISSN 1873-457X. Dostupné z: doi: 10.1016/j.quascirev.2019.106040.
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