<hi xmlns="http://www.tei-c.org/ns/1.0" rend="bold">Bonifati, Angela / Fletcher, George / Voigt, Hannes / Yakovets, Nikolay (2018)</hi>: <hi xmlns="http://www.tei-c.org/ns/1.0" rend="italic">Querying Graphs</hi>. San Rafael, CA: Morgan & Claypool Publishers.