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
 

Isings, C. (1971). Roman Glass in Limburg. Archaeologica Traiectina 9. Groningen: Wolters Noordhoff.