1. TWO EXISTENCE RESULTS FOR VARIATIONAL INEQUALITIES. Authors: D. INOAN, J. KOLUMBÁN.2. HOMOGENIZATION WITH MULTIPLE SCALE EXPANSION ON SELFSIMILAR STRUCTURES. Authors: J. KOLUMBÁN, A. SOÓS.3. BOOK REVIEWS - VLADIMIR A. MARCHENKO AND EVGUENI YA. KHRUSLOV, HOMOGENIZATION OF PARTIAL DIFFERENTIAL EQUATIONS. Authors: J. KOLUMBÁN.4. BOOK REVIEWS: SALEH A. R. AL-MEZEL, FALLEH R. M. AL-SOLAMY AND QAMRUL H. ANSARI, FIXED POINT THEORY, VARIATIONAL ANALYSIS, AND OPTIMIZATION, CRC PRESS, TAYLOR & FRANCIS GROUP, BOCA RATON 2014, XX + 347 PP, ISBN: 13: 978-1-4822-2207-4. Authors: J. KOLUMBÁN.