Brehm, Nicolas ;
Christl, Marcus ;
Knowles, Timothy D.J...
Brehm , N , Christl , M , Knowles , T D J , Casanova , E , Evershed , R P , Adolphi , F , Muscheler , R , Synal , H A , Mekhaldi , F , Paleari , C I , Leuschner , H H , Bayliss , A , Nicolussi , K , Pichler , T , Schlüchter , C , Pearson , C L , Salzer , M W , Fonti , P , Nievergelt , D , Hantemirov , R , Brown , D M , Usoskin , I & Wacker , L 2022 , ' Tree-rings reveal two strong solar proton events in 7176 and 5259 BCE ' , Nature Communications , vol. 13 , 1196 . https://doi.org/10.1038/s41467-022-28804-9.
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2022