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- E-bookMilitary History of Late Rome 602–641Ilkka Syvänne
- E-bookMilitary History of Late Rome 565–602Ilkka Syvänne
- E-bookMilitary History of Late Rome, 284–361Ilkka Syvänne
- E-bookMilitary History of Late Rome 361–395Ilkka Syvänne
- E-bookMilitary History of Late Rome 361–395Ilkka Syvänne
- E-bookMilitary History of Late Rome, 395–425Ilkka Syvänne
- E-bookMilitary History of Late Rome 518–565Ilkka Syvänne
- E-bookAurelian and ProbusIlkka Syvänne
- E-bookBritain in the Age of ArthurIlkka Syvänne
- E-bookMilitary History of Late Rome 425–457Ilkka Syvänne
- E-bookBritain in the Age of ArthurIlkka Syvänne
- E-bookMilitary History of Late Rome 457–518Ilkka Syvänne
- E-bookMilitary History of Late Rome 457–518Ilkka Syvänne
- E-bookThe Reign of Emperor GallienusIlkka Syvänne
- E-bookGordian III and Philip the ArabIlkka Syvänne
- E-bookEmperor Septimius SeverusIlkka Syvänne