On the Carolingian revival:
Alcuin (Vol. 1, p. 529).
Angilbert (Vol. 2, p. 9).
Charlemagne (Vol. 5, p. 891, especially p. 894).
France (Vol. 10, p. 810).
On the Scholastic revival:
Scholasticism (Vol. 24, p. 346).
Abelard (Vol. 1, p. 40).
John of Salisbury (Vol. 15, p. 449).
Albertus Magnus (Vol 1, p. 504).