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
 

Walimbe, S. and G. Schug (2016). A Companion to South Asia in the Past. Blackwell Companions. Malden: Blackwell.
Ulrich, R. and C. Quenemoen (2014). A companion to Roman architecture. Blackwell Companions. Chichester: Blackwell.