Electrostatic equilibrium of modulated electron beam in a plasma -- Electron bunches in a heated nonlinear magnetized plasma -- Self-focusing of relativistic electron bunches in a plasma -- Stationary space-charge waves in a plasma with resonant particles -- Electromagnetic solitons in retarding dispersive media with a charge particle beam -- Collective acceleration by ions by a relativistic electron beam -- Electrostatic perturbation collisional damping in a weakly ionized plasma.