Author: Elka Genova, Milko Genov
2020
7. Role of cultural tourism in increasing the competitiveness of tourist destination – Dubrovnik, Croatia
Author: Dayana Marinova
8. Destination management organisation – legal aspects and perspectives
Author: Tanya Yoncheva, Stoyan Hadzhidemirev
9. Free city tours as a marketing tool for presentation of local tourist attractions (for example Plovdiv city)
Author: Sevdalina Ilieva
10. Pollution of water with oil and oil products
Author: Desislava Shishkova, Ekaterina Vulcheva
11. Purification of wastewater from oil extraction
Author: Nadejda Popova, Ekaterina Valcheva
12. Scheme for individual marking of Lesser kestrel (Falco naumanni) by colour pvc ring applied in Europe
Author: Stilyana Yaneva, Gradimir Gradev, Simeon Marin, Tatyana Bileva
13. Importance and modern methods of soil pH regulation
Author: Elena Petrova
14. Innovative agricultural methods for income reduction
Author: Nina Mihova
15. Efficacy of herbicides for control of broadleaf weeds in winter wheat (Triticum aestivum l.)
Author: Biserka Yankova, Anyo Mitkov, Nesho Neshev, Mariyan Yanev, Tonyo Tonev