References
- Baker, R. W. R., and Nissim, J. A., “Expressions for Combining Standard Errors of Two Groups and for Sequential Standard Error,”, Nature, Vol. 198, June 8, 1963, p. 1020.
- Youngs, E. A., and Cramer, E. M., “Some Results Relevant to Choice of Sum and Sum-of-Product Algorithms,”, Technometrics, Vol. 13, No. 3, August 1971, pp. 657–665.