St. Jerome's letter to Eustochium: http://www.fordham.edu/halsall/source/jerome-marriage.html
I don't much like Tracy Chevalier's book The Lady and the Unicorn but her website has some excellent material on medieval symbolism: http://www.tchevalier.com/unicorn/background/symbolism/index.html
Jean Gerson's writings on the value of virginity: originally found at www.mw.mcmaster.ca/scriptorium/gerson1.html and now linked on our page
Women and hagiography in medieval Christianity: http://www.the-orb.net/encyclop/religion/hagiography/women1.htm
Ann R. Stanton, Medieval Iconography: http://web.missouri.edu/~ahaanne/251/iconography.html
Deborah Schwartz's study questions at Cal Poly University: http://cla.calpoly.edu/~dschwart/engl512/meidhad.html