Implementation of a Linear Quadratic Bumpless Transfer Method to a Magnetically Levitated Planar Actuator with Moving Magnets. - Krzysztof K. Kowalski; Jaron Achterberg; Nelis van Lierop; P. P. J. van den Bosch (CCA, 2010)

Modal observer design for a flexible motion system with state dependent sensor positions. - K. W. Verkerk; Jaron Achterberg; C. M. M. van Lierop; Siep Weiland (CDC, 2012)