Trakiyski, Veselin, Bulgaria

• 2018 - Articles
  The Golden Age in the cultural heritage of Varna
  Abstract  PDF
• 2019 - Articles
  The name of the city of Varna and its emergence in the place of Odessos
  Abstract  PDF
• 2020 - Articles
  The Varna contribution to the establishing of the radiation situation in the Black Sea region during the Chernobyl disaster and to the cultural heritage of Varna
  Abstract  PDF
• 2020 - Articles
  The books from our Golden Age in the cultural heritage of Varna, their preserved titles in the Russian chronicles, outlook and content
  Abstract  PDF
• 2021 - Articles
  The books from the Golden Age and their preservation in the cultural heritage of Varna and the Black Sea region
  Abstract  PDF
• 2024 - Articles
  Global contribution of Bulgarians during the Chernobyl nuclear power plant disaster in 1986
  Abstract  PDF