[e] Charles Merivale, A History of the Romans under the Empire.
Chapter XXX.
[b] F. C. Schlosser, Weltgeschichte für das Deutsche Volk.
[c] Georg Weber, op. cit.
[d] Eduard Meyer, Untersuchungen über die Schlacht im Teutoberger Walde.
[e] Caius Velleius Paterculus, Compendium of the History of Rome (translated from the Latin by J. S. Watson).
[f] Florus, Epitome of Roman History (translated from the Latin by J. S. Watson).
[g] Cornelius Tacitus, Annales.
Chapter XXXI.
[b] Victor Gardthausen, op. cit.