Here are some articles that I am fond of, which I found online.

First, one I mentioned under the Battle folder
http://web.archive.org/web/20110605021909/http://www.deremilitari.org/resources/articles/bachrach3.htm

Second: Means, Motive, Opportunity: Medieval Women and the Recourse to Arms
http://deremilitari.org/wp-content/uploads/2012/09/Eads-MeansMotivesOpp.pdf

Third: Practical Chivalry, the Training of Horses for Tournaments and Warfare
http://web.archive.org/web/20101230002314/http://www.deremilitari.org/resources/pdfs/gillmor2.pdf

I have just read the first link so far, but this is a really great read. Thanks!