| Work address: | 89 Kazanskaya Str., Yelabuga, Yelabuga Institute Main building |
| Office number: | 47 |
| Phone: | 88555775421 |
| E-mail: | TVKostina@kpfu.ru |
| Google scholar: | https://scholar.google.is/citations?view_op=list_works&hl=ru&user=FxLjWYAAAAAJ |
| Work address: | 89 Kazanskaya Str., Yelabuga, Yelabuga Institute Main building |
| Office number: | 47 |
| Phone: | 88555775421 |
| E-mail: | TVKostina@kpfu.ru |
| Google scholar: | https://scholar.google.is/citations?view_op=list_works&hl=ru&user=FxLjWYAAAAAJ |