The Chaucer Review: An Indexed Bibliography (Vols. 1-30)

Bloomfield, Morton W. "Personification-Metaphors." 14 (1980): 287-97.
Some images function like personifications but are veiled, and these are personification-metaphors. True personifications continue for an extended period in the text, while a personification-metaphor may only encompass one or two lines. Unlike Shakespeare and Milton, Chaucer did not use personification-metaphors often. The appendix provides a list of additional personification-metaphors in Keats.