You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'ORDER BY issue DESC, `year` DESC ) QQ WHERE `year`<2100 ORDER BY modified DES...' at line 1 Bibliographies | Miko Flohr
 

Mouchard, J. and D. Guitton (2020). Les ports romains dans les Trois Gaules. Entre Atlantique et eaux intérieures. Gallia 77.1. : .