1. Wickham, M.J., 1992, “Optimal Experimental Design for the Instrumentation of a Multi-Axis Load Transducer.”, Ph.D. thesis, University of Minnesota
2. Wickham, M.J., Galliart, D.R., Nachtsheim, C.J. and Riley, D.R., 1994, “The Design and Application of a Multi-Axis Load Transducer.", SAE paper 940250.
3. Wickham, M.J., Riley, E.R. and Nachtsheim, C.J., 1992, “The Optimal Design of a Multi-Axis Load Transducer", Proceedings of the 1992 ASME International Computers in Engineering Conference and Exposition, G.A. Gabriele, ed., ASME, New York, Vol. 1, pp. 175-179.
4. Wheeler, B., 2011, “AlgDesign, Algorithmic Experimental Design", h. www.rdocumentation.org/packages/AlgDesign/versions/1.1-7.3/topics/optFederov
5. Hoffman, K., 1989, “An Introduction to Measurements using Strain Gages.", Hottinger Baldwin Messtechnik, GmbH, Darmstadt.