ABSTRACT - Linear and Quadratic Growth Curve Models with Intraclass Covariance Structure and Related Optimal Designs. Bikas K. Sinha; Markus Abt; Erkki Liski — 1995 Metrika
MSE-Improvement of the Least Squares Estimator by Dropping Variables. Erkki P. Liski; Götz Trenkler — 1993 Metrika
Another Look at the Naive Estimator in a Regression Model. Erkki P. Liski; Song-Gui Wang — 1994 Metrika