K. Marinow, “War and Peace in the House of the Lord: A Conflict among Orthodox Christians and its Overcoming according to the Homily ‘On the Treaty with the Bulgarians’”, in The Bulgarian State in 927-969. The Epoch of Tsar Peter I: No. XXXIV, M. J. Leszka, Ed. Poland: Lodz University Press, 2018, pp. 435–456. doi: 10.18778/8142-115-7.20.