Where to get SRSTI?
To get SRSTI you need to go to the site http://grnti.ru. According to your topic, you can select an area and get the SRSTI relative to your article. For example, if your article relates to the "History of the Museum", you make the following selections:
1) 13: CULTURE. CULTUROLOGY
2) 13.51: MUSEUM BUSINESS. MUSEOLOGY
3) 13.51.09: HISTORY OF MUSEUM BUSINESS.
The subject of your article corresponds to the SRSTI 13.51.09.