1. Arrora JS (1989) Introduction to optimal design. McGraw-Hill, Ohio, USA
2. Baumeister T, Avallone EA, Baumeister T (1978) Standard handbook for mechanical engineers, 8th edn. McGraw-Hill, Ohio, USA
3. Fabien BC (1990) Contributions to the design optimization, control and synthesis of electromechanical systems. PhD thesis, University of Columbia, USA
4. Fabien BC (1998) Some tools for the direct solution of optimal control problems. Adv Eng Softw 29(1):45–61
5. Engelmann R (1982) Static and rotating electromagnetic devices. Marcel Dekker, New York