Tree rings reveal dry conditions during Charlemagne’s Fossa Carolina construction in 793 CE
| Autor: | Muigg, Bernhard, Seim, Andrea, Tegel, Willy, Werther, Lukas, Herzig, Franz, Schmidt, Johannes, Zielhofer, Christoph, Land, Alexander, Büntgen, Ulf |
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| Zdroj: | In Quaternary Science Reviews 1 January 2020 227 |
| Databáze: | ScienceDirect |
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