1. HARMONIC MULTIVALENT FUNCTIONS DEFINED BY INTEGRAL OPERATOR. Authors: LUMINIȚA-IOANA COTÎRLĂ.2. A DIFFERENTIAL SANDWICH THEOREM FOR ANALYTIC FUNCTIONS DEFINED BY THE INTEGRAL OPERATOR. Authors: LUMINIȚA-IOANA COTÎRLĂ.3. SOME PROPERTIES OF A NEW CLASS OF CERTAIN ANALYTIC FUNCTIONS OF COMPLEX ORDER. Authors: LUMINIȚA-IOANA COTÎRLĂ.4. DIFFERENTIAL SANDWICH THEOREM FOR CERTAIN CLASS OF ANALYTIC FUNCTIONS ASSOCIATED WITH AN INTEGRAL OPERATOR. Authors: ADRIANA CĂTAȘ, LUMINIȚA-IOANA COTÎRLĂ.