http://www.artcyclopedia.com/history/baroque.html

http://www.ibiblio.org/wm/paint/glo/baroque/

http://www.monalisamania.com/aammain.htm

http://www.ibiblio.org/wm/paint/auth/velazquez/

http://66.102.7.104/search?q=cache:f4_PnVVUFtgJ:www.answers.com/topic/diego-vel-zquez+Diego+Velázquez+all+about+The+Forge+of+Vulcan&hl=en