Poh'lad Lucia Caecilia Firmiana Lactantia na cisára Gaia Galeria Valeria Maximiana v diele De mortibus persecutorum. Lucius Caecilius Firmianus Lactantius's view of the Caesar Gaius Galerius Valerius Maximianus in the work "De mortibus persecutorum" - Jirkal, Emanuel (Studia Historica Nitriensia, 7 (1998), 1998)