Fiannachta, Pádraig Ó. "Four Irish martyrologies: Drummond, Turin, Cashel, York. Ed. by P. Ó RIAIN" Zeitschrift für celtische Philologie, 55.1 (2008): 276-279. Retrieved 24 May. 2013, from doi:10.1515/ZCPH.2007.276

Fiannachta, P. (2008). Four Irish martyrologies: Drummond, Turin, Cashel, York. Ed. by P. Ó RIAIN. Zeitschrift für celtische Philologie, 55(1), pp. 1-372. Retrieved 24 May. 2013, from doi:10.1515/ZCPH.2007.276

Fiannachta, Pádraig Ó. 2008. Four Irish martyrologies: Drummond, Turin, Cashel, York. Ed. by P. Ó RIAIN. Zeitschrift für celtische Philologie. 55(1): 1-372. Retrieved 24 May. 2013, from doi:10.1515/ZCPH.2007.276