1. SINCROMARKETING IN SERVICES. Authors: I. SZEGŐ, Á. VORZSÁK.2. RELATIONSHIP MARKETING IN TERTIARY SPHERE. Authors: I. SZEGŐ, N. GHERASIM, M.C. POP, N.D. PAINA, Á. VORZSÁK.3. THE PROMOTION AND MARKETING COMMUNICATIONS IN SERVICES. Authors: I. SZEGŐ, MARCEL POP, NICOLETA PAINA, Á. VORZSÁK.