1. E. W. Smathers and P. F. Ostwald, ?Optimization of component functional dimensions and tolerances?,American Society of Mechanical Engineers, 72-DE-18, 1972.
2. P. F. Ostwald and J. Huang, ?A method for optimal tolerance selection?,Journal of Engineering for Industry, 76-WA/DE-23, pp. 558?564, 1976.
3. S. H. Kim and K. Knott, ?A pseudo-Boolean approach to determining least cost tolerances?,International Journal of Production Research,26(1), pp. 157?167, 1988.
4. W.-J. Lee and T. C. Woo, ?Optimum selection of discrete tolerances?,Journal of Mechanisms, Transmissions, and Automation in Design,111(2), pp. 243?251, 1989.
5. Z. Wu, W. H. Elmaraghy and H. A. Elmaraghy, ?Evaluation of cost-tolerance algorithms for design tolerance analysis and synthesis?,Manufacturing Review,1(3), pp. 168?179, 1988.