Online Contents
 2020, Vol. 72 
| From the Editorial Board | 3-4 | 
| Vassil Sgurev.   Contributions of the Department of Engineering Sciences of the Bulgarian Academy of Sciences (BAS) in Automation, Robotics and Computers during the Past Century  | 
		5-16 | 
| Vasily Osipov, Alexander Vodijo, Radoslav Yoshinov, Nataly Zhukova.  Software Modeling of Technical Objects  | 
		17-28 | 
| Ivan Stankov, Georgi Tsochev.  Vulnerability and Protection of Business Management Systems: Threats and Challenges  | 
		29-40 | 
| Rosa Fatkieva, Elena Evnevich, Radoslav Yoshinov.  State-of-the Art and Trends in Network Security Control  | 
		41-55 | 
| Mitko Petrov.   Modelling and Multi-Criteria Decision Making for Selection of Growth Rate Models of Batch Whey Cultivation by Kluyveromyces marxianus var. lactis MC 5  | 
		56-68 | 
| Radoslav Yoshinov, Igor Kulikov, Nataly Zhukova.  Methods of Composing Hierarchical Knowledge Graphs of Telecommunication Networks  | 
		69-78 | 

