Curveball - Wikipedia
Dynamical chaos in a simple model of a knuckleball - ScienceDirect
Applied Sciences, Free Full-Text
Sungchan Hong's research works University of Tsukuba, Tsukuba and other places
Applied Sciences, Free Full-Text
PDF] Aerodynamics of the knuckleball pitch: Experimental measurements on slowly rotating baseballs
Frontiers On the Aerodynamic Forces on a Baseball, With Applications
Education News & Blogs – NASA Jet Propulsion Laboratory
Dynamical chaos in a simple model of a knuckleball - ScienceDirect
KNUCKLEBALLS
SPORTS BALL AERODYNAMICS: EFFECTS OF VELOCITY - TMS
Difference in the seam orientations (the number of seams per rotation
Computational trajectories for Brazuca and Jabulani balls kicked 30 m/s
How to Throw a Curveball - A Step-by-Step Guide for Pitchers