| Marjorie Chibnall |
The Letters of John of Salisbury. Vol. II: The Later Letters (1163-1180). (Oxford Medieval Texts), by W. J. Millor, C. N. L. Brooke |
|
50/1, p. 123 |
| N. Denholm-Young |
Regalian Right in Medieval England, by Margaret Howell |
|
32/3, p. 248 |
| Dennis Green |
Bernd Schneidmüller (ed.), Die Welfen und ihr Braunschweiger Hof, Wolfenbütteler Mittelalter-Studien 7 |
|
66/2, p. 360 |