5Sayidmarie O K, Agouri S A, Tokhi M O. Balancing and Control of a Two-Wheeled Robot on Inclined Surface [Z]. Mobile Service Robotics, 2014.
6Slavov T, Kralev J, Petkov P. Linear-Quadratic Control of a Two- Wheeled Robot [J]. Cr Acad Bulg Sci, 2014, 67 (8) : 1153-1158.
7Larimi S R, Zarafshan P, Moosavian SAA. A New Stabilization Algorithm for a Two-Wheeled Mobile Robot Aided by Reaction Wheel [J]. J Dyn Syst-T Asme, 2015, 137.
8Kim S, Kwon S. Dynamic Modeling of a Two-wheeled Inverted Pendulum Balancing Mobile Robot [J]. Int J Control Autom, 2015, 13 (4) : 926-933.