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Kassendisposition und Wertpapieranlage
Ballwieser, Wolfgang, (1978)
An econometric study of the systematic risk of securities using the beta coefficient
Shieh, John Ting-chung, (1981)
Portfolio composition and pension wealth : an econometric study
Dicks-Mireaux, Louis, (1982)
Bias in estimating parameters of portfolio selection models
Mosler, Stanley Dennis, (1974)