Trajan's Parthian War and the Fourth-Century Perspective
C. S. Lightfoot
The Journal of Roman Studies, Vol. 80, (1990), pp. 115-126
The Imperial Finances under Domitian, Nerva and Trajan
Ronald Syme
The Journal of Roman Studies, Vol. 20 (1930), pp. 55-70
Trajan's Replies to Pliny: Authorship and Necessity
A. N. Sherwin-White
The Journal of Roman Studies, Vol. 52, Parts 1 and 2 (1962), pp. 114-125
The Public Image of Trajan's Family
P. A. Roche
Classical Philology, Vol. 97, No. 1 (Jan., 2002), pp. 41-60