1. J. Beams, J. Breazeale, and W. Bart. Mechanical strength of thin film of metals. Physical Review, 100(6):1675–1661, 1955.
2. J. Beams, J. Young, and J. Moore. The production of high centrifugal fields. Journal of Applied Physics, 12(7):886–890, 1946.
3. A. Boletis. High Speed Micromotor on a Three Axis Active Magnetic Bearing. PhD thesis, EPFL, 2005.
4. Orphée Cugat, editor. Micro-actionneurs électromagnétiques MAGMAS. Hermes Science Publications, 2002. ISBN 2-7462-0449-5.
5. Toshiro Higuchi and Masahiro Wanatabe. Apparatus for effecting fine movement by impact force produced by piezoelectric or electrostrictive element. United States Patent Number 4894579, January1990. Assignee: Research Development Corporation of Japan.