1. CONTRACT OF GAME OR PLAY THE CONTRACT? (LOOK ON THE CONVENTIONS OF THE GAME AND BET) / CONTRACTUL DE JOC SAU JOACA DE-A CONTRACTUL? (PRIVIRE ASUPRA CONVENŢIILOR DE JOC ŞI PARIU). Authors: ADINA BUCIUMAN.2. RELATIONSHIP BETWEEN NATURAL OBLIGATION AND LIBERALS / RELAŢIA DINTRE OBLIGAŢIA NATURALĂ ŞI LIBERALITĂŢI. Authors: ADINA BUCIUMAN.3. ADMINISTRATIVE SERVITUDES / LES SERVITUDES ADMINISTRATIVES. Authors: ADINA BUCIUMAN.4. JURIDICITY OF NATURALIS OBLIGATIO / JURIDICITE DE L’OBLIGATION NATURELLE / JURIDICITATEA OBLIGAŢIEI NATURALE. Authors: ADINA BUCIUMAN.5. OBLIGATIONS NATURELLES ISSUES DES MECANISMES EXTINCTIFS IMPARFAITS DE L’OBLIGATION. Authors: ADINA BUCIUMAN.