1. Birch, Jeffrey B. (1977). Small sample robustness properties of generalized M-estimators applied to first order autoregres-sion. Unpublished Ph.D. dissertation, Department of Biostatistics, University of Washington.
2. Birch, Jeffrey B. 1979. “Some convergence properties of iterated weighted least squares in the location model”. Submitted for publication.
3. Robust Estimation of the First-Order Autoregressive Parameter
4. Confidence Intervals for Bisquare Regression Estimates