* J. Coleman: English Literature in History: 1350-1400. Medieval  Readers and Writers
*D. Aers: Community, Gender and Individual Identity. (1988)
E. Salter: Fourteenth Century Poetry (1983)
M.M. Postan: The Medieval Economy and Society VOL. 1. Pelican  Economic History of Britain. (1972)
H.R. Jauss: "The Alterity and Modernity of Medieval Literature," NLH 10 (1979) 181-231.
P. Boitani: English Medieval Narrative in the 13th and 14th Centuries tr. J.K. Hall.(1982)
U. Eco: The Name of the Rose (1984)
 

some medieval links:

Internet medieval sourcebook
Labyrinth medieval resources
netserf