Marinkevich, Zhenya. “Decorated Busts of the Antonines: New Bust Variants of Denarii from AD 138 to AD 188 (Antoninus Pius, Marcus Aurelius, Lucius Verus, Commodus, Faustina II, Lucilla)”. KOINON: The International Journal of Classical Numismatic Studies 4 (December 31, 2021): 154–195. Accessed January 29, 2023. https://archaeopresspublishing.com/ojs/index.php/koinon/article/view/1115.