1. RESONANCE EFFECTS IN QUANTUM TRANSITIONS INDUCED BY ULTRASHORT LASER PULSES WITH HIGH REPETITION RATE. Authors: S. BORBÉLY, L. NAGY.2. COLLECTIVE BEHAVIOR OF COUPLED QUANTUM MECHANICAL OSCILLATORS. Authors: S. BORBÉLY.3. NONUNIFORM NUMERICAL GRID FOR THE NUMERICAL SOLUTION OF THE SCHRÖDINGER EQUATION. Authors: S. BORBÉLY.