1. ?Practical Nonparametric Statistics,? 2nd ed., Wiley, New York, (1980), Section 5.5.
2. ?Statistical Methods of Econometrics,? 3rd ed., North-Holland, Amsterdam, (1980), Chaps. 3 and 5 (see Gauss-Markov Theorem).
3. Direct comparison of methods for extracting the rate from first order data with background
4. ?Dealing With Data,? Pergamon, Oxford, (1970), Section 26.
5. ?Data Reduction and Error Analysis for the Physical Sciences,? McGraw-Hill, New York, (1969), p. 118.