For example, instead of idem in the second reference, I need to include the author’s last name.
[1]. Emanuel Tov, “Three Manuscripts (Abbreviated Texts?) of Canticles from Qumran Cave 4,” JJS 46 (1995): 88; idem., “Canticles,” in Qumran Cave 4.XI: Psalms to Chronicles, ed. Eugene Ulrich et al., DJD (Oxford: Clarendon, 2000), 195.