Catholic Encyclopedia: Richard of Cornwall: Short article by Edwin Burton.
Franciscan Masters: Richard Rufus: Very concise information on this medieval thinker.
Richard Rufus of Cornwall: Biographical information and listings of his works and manuscripts.
Texts Alter View of Medieval Scholasticism, Scholar Says: A June 2001 news article from Stanford Report describing the Richard Rufus of Cornwall Project to recover and publish his writings. By John Sanford.