Links for Johann Eck

Catholic Encyclopedia: Johann Eck
http://www.newadvent.org/cathen/05271b.htm
Johann Eck
http://www.ccel.org/s/schaff/encyc/encyc04/htm/ii.iii.ii.htm
Johann Maier Eck
http://52.1911encyclopedia.org/E/EC/ECK_JOHANN_MAIER.htm