Velocity-free spacecraft attitude stabilization using two control torques. - Alexander Frias; Anton H. J. de Ruiter; Krishna Dev Kumar (Autom., 2019)

Improved Accuracy of a Single-Slit Digital Sun Sensor Design for CubeSat Application Using Sub-Pixel Interpolation. - Fuat Kaan Diriker; Alexander Frias; Ki Hwan Keum; Regina S. K. Lee (Sensors, 2021)