Marble head of an athlete – Roman – Mid-Imperial, Antonine – The Metropolitan Museum of Art https://www.metmuseum.org/art/collection/search/248579
Robinson, Edward. 1912. „Head of a Greek Athlete.“ Bulletin of the Metropolitan Museum of Art, 7(3): pp. 43, 47–49.Richter, Gisela M. A. 1917. Handbook of the Classical Collection
Amazones Volneratae: Untersuchungen ze den Ephesischen Amazonenstauen.