The Calculation of Nucleon Cascades in Nuclei by the Monte-Carlo Method.- Beam Behavior in a Sector Cyclotron.- Literature Cited.- Vassal (Automatic Memory Allocation System).- Literature Cited.- Determination of Reactions Cross Sections from Counter-Telescope Data.- Literature Cited.- Typical and Atypical Failures of the General-Purpose Computer M-20, Methods of Localization and Elimination.- Literature Cited.- Some Problems in Analyzing the Dynamic Structure of an Object from the Steady-State Signal.- 1. Inverse Analysis Problems.- 2. Statement of the Problem.- 3. Method of Obtaining the Dynamic Operator.- 4. Region of Application of Method.- 5. Comments.- Literature Cited.