{"id":"000381515","type":"book","title":"The onset of crisis. The reign of the emperor Severus Alexander, A.D. 222 - 235","pages":"13-17","container-title":"Limes, 18. Proceedings of the XVIIIth International Congress of Roman Frontier Studies held in Amman, Jordan, September 2000","author":[{"family":"Blois","given":"L. de"}]}