1. Christopher B. Barry Robert L. Winkler Portfolio Analysis under Nonstationarity paper to be presented at the 1974 annual meetings of the Western Economic Association
2. A. J. Boness A. H. Chen S. Jatusipitak A Hypothesis of Non-Stationary Common Share Price Changes unpublished manuscript, State University of New York at Buffalo 1972
3. Estimation Risk and the Portfolio Selection Model;Basil;Journal of Financial and Quantitative Analysis,1971