Following is the continuation of the list of titles and authors of 245 papers presented: Commentary: Estimation and Identification. By Andrew P. Sage. Comparison of the Effectiveness of Some Adaptive Optimal Filtering Techniques Applied to the Gyrocompassing Problem. By M. Sidar and Y. Bar-Shlomo. Practical Applications of a Digital Filter Algorithm. By G. Gilles. Estimation of Noise Covariance Matrices for a Linear Time-Varying Stochastic Process. By Pierre R. Belanger. Progressive Identification. By J. F. Croce-Spinelli and S. Larcher. Order Determination and Parameter Identification of Time-Invariant State Variable Models. By M. Djorovic and S. P. Bingulac. Optimal Minimal-Order Observers for Discrete-Time Systems - A Unified Theory. By C. T. Leondes and L. M. Novak. Commentary: Synthesis of Logical Systems: From theory to Applications. By Eric Daclin. Direct Digital Control by Impulses Application to a Width-Modulated Sampled Data System. By J. P. Janicot, J. M. Toulotte and F. Laurent.