De Bello Alexandrino is followed by De Bello Africo and De Bello Hispaniensi. These three works end the Cesarean corpus relating Caesar's civil war. Though normally collected and bound with Caesar's authentic writings, their authorship has been debated since antiquity. Suetonius suggests both Oppius and Hirtius as possible authors. of De Bello Alexandrino. A. Klotz demonstrate in great detail that the style of De Bello Alexandrino is very similar to the style of the eighth and last book of De Bello Gallico, which is very commonly attributed to Hirtius. Thus it seems likely on stylistic grounds that if it was Hirtius who completed the Gallic Wars, it was Hirtius also who wrote De Bello Alexandrino. But if he did so, his knowledge of the campaign was second-hand, as the author of De Bello Gallico, VIII writes in the introductory chapter: "Mihi ne illid quidem accidit, ut Alexandrino atque Africano bello interessem" ("For myself, I had not the occasion to take part in the Alexandrian and African wars").
Jan Felix Gaertner, Bianca C. Hausburg: Caesar and the Bellum Alexandrinum. An Analysis of Style, Narrative Technique, and the Reception of Greek Historiography. Göttingen 2013, ISBN 978-3-525-25300-7.
Raphael Giomini: Bellum Alexandrinum. Rome 1956.
Alfred Klotz: Cäsarstudien: nebst einer Analyse der Strabonischen Beschreibung von Gallien und Britannien. Leipzig/Berlin 1910.
Gustav Landgraf: Untersuchungen zu Caesar und seinen Fortsetzern, insbesondere über Autorschaft und Komposition des Bellum Alexandrinum und Africanum. Erlangen 1888.
Carl Nipperdey: C. Iulii Caesaris commentarii cum supplementis A. Hirtii et aliorum. Caesaris Hirtiique fragmenta. Leipzig 1847.
Heinz Pötter: Untersuchungen zum Bellum Alexandrinum und Bellum Africanum. Stil und Verfasserfrage. Leipzig 1932.
Rudolf Schneider: Bellum Alexandrinum. Berlin 1888.