| MATHEMATICS | | |
| N. Elez | Equations related to the boundary operator in a topological space | 5 |
| V. O. Chiboka | The Bryant - Schneider group of an extra loop | 9 |
| Sever Dragomir | On some integral inequalities for convex functions | 21 |
| Daniel A. Romano | Some results on quotient coideal of coideal which is the union of primary coideals | 27 |
| Zdravko Starc | Exponential estimates for solutions of second order linear ordinary differential equations | 35 |
| Jovanka Nikić | Properties of the Nijenhuis tensor of almost Hermite manifold | 41 |
| Boško Damjanović | Interior boundary value problem for polyanalytic functions in simple connected regions | 51 |
| Nikola Rosić | Some properties of the particular solutions of differential equations | 59 |
| Dragić Banković | Solutions of k-valued equations | 69 |
| Ivan Gutman | On the energy of quadrangle-free graphs | 75 |
| Olga Miljković | Simulation using concepts of artificial intelligence | 83 |
| PHYSICS | | |
Jovanka Živojinov Srboljub Stamenković Vladimir Ristić | Determination of partition function for solid mercury in the temperature interval from 0 to 8K | 95 |
| CHEMISTRY | | |
Ivan Gutman Murlidhar V. Kaulgud Vijau H. Chitgopkar | Wiener numbers of non-periodic polymers | 105 |
| BIOLOGY | | |
Milić Matović Ljiljana Vujković Aca Marković | Study of some relict species in the north-west part of the Balkan peninsula - a contribution to protection of biodiversity | 115 |