| MATHEMATICS | | |
| Titi Obilade | Solo service distribution in a batch acceptance and batch service queuing system | 7 |
| V.O. Chiboka | Structure of extra algebras | 17 |
| Zdravko F. Starc | Behavior at infinity of solutions of the Abel differential equation of the second kind | 27 |
| Alexander Abian | Convolution product and Fourier Transform | 31 |
| Nikola Rosić | An application of double transformation of differential equations | 35 |
| John Olusola Adeniran | On certain anticommutative algebras | 41 |
J. O. Adeniran A. R. T. Solarin | A note on automorphic inverse property loops | 47 |
| Daniel Abraham Romano | Semivaluations on Heyting fields | 53 |
| James Adedayo Oguntuase | A note on Gronwall-Bellman integral inequality | 77 |
| Miodrag M. Spalević | Product of rectangle and Gauss-Turán's quadratures for n-sphere | 83 |
| M. O. Ojo | A remark on "A simple approximation to the maximum likelihood solution in analysing bioassay data" | 91 |
| Alfred Akinsete | Departure process in the interchangeability of tandem queues with withdrawals | 97 |
| PHYSICS | | |
| Ljubisav Novaković | Highly anharmonic potentials, an origin of broken symmetry, and the pseudospin concept | 105 |
Vladimir M. Ristić Mirko M. Radulović | About the behavior of corrections to the transition rate for tunnel ionization of atoms and ions by a strong low-frequency electromagnetic field | 129 |
| CHEMISTRY | | |
Milan Kunz Ivan Gutman | An experiment in chemical informatics. I. Statistical analysis of a personal bibliography | 135 |
Milan Kunz Zdeñek Rádl Ivan Gutman | An experiment in chemical informatics. II. Fourier analysis of a personal bibliography | 147 |
Ivan Gutman Sven J. Cyvin Vesna Ivanov-Petrović | A survey of topological properties of circumcoronenes | 155 |
| BIOLOGY | | |
| N. N. Tupitsyna | The genus Hieracium L. in Serbia | 167 |
Snežana Maletić Ljiljana Dragićević-Djoković Milosav Kostić | Alterations of a rat reticulocyte (anti)oxidant status influenced by hydrogen-peroxide | 173 |
Marina Topuzović Dragić Banković | The influence of traffic on adaptation of ventilation tissue in plants growing on terrains by highways | 183 |
| INFORMATICS | | |
| Dušan M. Stefanović | Analysis of stock models within the scope of distributed logistic system | 191 |