| MATHEMATICS | | |
| Daniel A. Romano | Some constructions of b-ideals of the Cartesian product of sets with apartnesses | 7 |
| Dragić Banković | Formulas of particular solutions of Boolean equations | 11 |
| Dragić Banković | A note on finite equations | 15 |
Sever S. Dragomir Nicoleta M. Ionescu | New properties of Q-inner-product spaces | 19 |
S. S. Dragomir D. M. Milošević Š. Z. Arslanagić | A Cauchi-Buniakowski-Schwarz inequality for Lipschitzian functions | 25 |
S. S. Dragomir G. Toader | A new improvement of Jensen's inequality | 29 |
| Miloš Čanak | Application of some results of mathematical theory of music in function and making of music instruments. Part 2. Idiophones and membranophones | 35 |
| Mirko Lepović | The strongly asymmetric graphs of order 8 | 41 |
| PHYSICS | | |
Svetislav Savović Stevan Jokić | Geometrical efficiency of the multidetector system evaluated by Monte/Carlo simulation | 45 |
| CHEMISTRY | | |
Ivanka Holclajtner-Antunović Marija Todorović | Plasmochemical synthesis of nitrogen monoxide | 51 |
Ivan Gutman Milijana Čukanović Ljiljana Popović | Coding chemical structure bz means of Matula numbers. Some computational aspects | 63 |
| BIOLOGY | | |
| Snežana Pešić | The sinusion of weevils (Coleoptera, Curculionidae) in the willow and poplar groves in Šumarice near Kragujevac | 67 |
Mirjana Stojanović Spasenija Karaman | Anthropogenic effects on the dynamics and development of Lumbricida in the vicinity of Kragujevac . | 73 |
| Bela Blesić | Fauna of Protura and Diplura (Apterygota, Insecta) of Kotlenik | 81 |
Andraš Štajn Radoslav V. Žikić Branka Ognjanović | Effect of acute and chronic swim-stress on some haematologic values and on the activitz of superoxide dismutase and catalase in erithrocytes of the rats | 85 |
Milić Matović Marina Topuzović Aca Marković | Variability of leaves of Pancicia serbica Vis. (Zlatar, Jadovnik and Ozren) | 91 |
Radomir Ognjanović Aca Marković Vladimir Veljović | Weed vegetation of some agricultural, aquatic and neglected areas of the central part of Serbia | 99 |
Milić Matović Aca Marković Ljiljana Vujković Biljana Svilkić Gorica Đelić | Ecological characteristics of polzdominant relict stands of Serbian spruce (Picea omorica Panč.) and other species in Serbia | 111 |