Linear sequential estimation with unestimated parameters. - Lawrence Schwartz (Inf. Sci., 1969)

Computational validity of approximate nonlinear minimal-variance filters. - Lawrence Schwartz; Edwin B. Stear (Inf. Sci., 1969)

Sequential estimation with unestimated parameters - The forced case. - Lawrence Schwartz (Inf. Sci., 1970)

On certain properties of linear estimators. - Lawrence Schwartz (Inf. Sci., 1973)

Sequential estimation with unestimated parameters-the fallacy. - Lawrence Schwartz (Inf. Sci., 1974)