Res Gestae
Ammianus Marcellinus
Ammianus Marcellinus. Ammianus Marcellinus, with an English translation, Vols. I-III. Rolfe, John C., translator. Cambridge, MA; London: Harvard University Press; W. Heinemann, 1935-1940 (printing).
None the less, Count Lucillianus, who then commanded the troops stationed in those regions, with headquarters at Sirmium, having some slight intelligence of Julian’s move, gathered together such forces as regard for speedy action allowed to be summoned from the neighbouring stations and planned to resist him when he should arrive.