HoganB., Five Lessons, A. S. Barnes & Co., New York, 1957.
3.
LeeT.D.SwansonL.R.HallA.L., What is Repeated in a Repetition? Effects of Practice Conditions on Motor Skill Acquisition, Physical Therapy, 1991, 71(2), 150–156, http://www.ptjournalonline.org/cgi/reprint/71/2/150.
4.
Douglas FieldsDr, National Institute of Health, Personal E-mails.
5.
CoyleD., The Talent Code: Greatness Isn't Born. It's Grown. Here's How, Bantam Books, New York, 2009.
6.
WaitzkinJ., The Art Of Learning: A Journey in the Pursuit of Excellence, Free Press, New York, 2007.