![]()  | 
 THE HOLISTIC APPROACH TO ENVIRONMENT VOLUME: 1 YEAR: 2011 ISSUE: 2 pp. 36 – 80  | 
| TABLE OF CONTENTS | 
| Damir Hršak | 36 – 37 | 
| Original scientific paper | |
| Dajana Kučić, Snežana Miljanić, Mirela Rožić | 38 – 48 | 
| Patricia Čekanova, Natalia Jasminska, Tomaš Brestovič, Eva Schvarzbacherova
 BIOGAS UPGRADING PROCESSES FOR THE PRODUCTION OF NATURAL GAS SUBSTITUTE  | 
49 – 58 | 
| Review | |
| Mira Petrovic, Jelena Radjenovic, Damia Barcelo | 59 – 70 | 
| Professional paper | 
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| Davor Ljubas, Goran Sabol | 
 71 – 80  | 

