Effects of core strengthening on balance in university judo athletes - ScienceDirect
Balance Training: Stability Workouts for Core Strength and a Sculpted Body - Kindle edition by Karter, Karon. Health, Fitness & Dieting Kindle eBooks @ Amazon.com.
Core and Balance: A 15-minute Lower-body Training with Bosu Ball for B
Best core exercises for MTB riders: Check them out!