P Kjaer

Comparison of safety critical and fault tolerant electrical drive technologies for use in large electromechanical flight control surface actuation

D. Howe, Phil Mellor, Calum Cossar, 1999 .

Comparison of electrical drive technologies for aircraft flight control surface actuation

Kais Atallah, D. Howe, Chris Bingham, 1999, IEMDC 1999.

Modic changes, possible causes and relation to low back pain.

P Kjaer, T Bendix, Claus Manniche, 2008, Medical hypotheses.