1. Lectures on the Identification Problem—The Least Squares Method;Åström,1968
2. Numerical Identification of Linear Dynamic Systems from Normal Operating Records;Åström,1965
3. Theory of Self-Adaptive Control Systems,1966
4. System identification—a survey;Åström;Automatica,1971
5. Uniqueness of the maximum likelihood estimates of the parameters of an ARMA model;Åström;IEEE Trans. Aut. Control,1974