1. SOCIAL GROUPS TAXONOMY. Authors: ALEXANDRU MURESAN.2. RESOURCES USED IN METHODOLOGY OF TRAINING IN TECHNICAL AND TACTICAL GAME OF VOLLEYBALL / MOYENS EMPLOYES DANS LA METHODIQUE DE L’INSTRUCTION TECHNICO TACTIQUES DANS LE JEU DE VOLLEY-BALL . Authors: HOREA MOŞNEAG, ALEXANDRU MURESAN.3. TEAM GAMES MANAGEMENT. Authors: ALEXANDRU MURESAN.4. VOLLEYBALL EVOLUTION. ASPECTS IN THE DEVELOPMENT OF THE ROMANIAN VOLLEYBALL. Authors: ALEXANDRU MURESAN.