Articles by Author

Author

Kaloyan Tsvetkov

Sofia University "St. Kliment Ohridski"
Sofia, Bulgaria
https://www.uni-sofia.bg/index.php/bu...

3 articles by this author

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Research Article

Marriage rates of the population in Bulgaria: features and trends of change

Toni Traykov, Kaloyan Tsvetkov

10.3897/jbgs.e72840

23-09-2021

Unique: 2495 | Total: 5057

Reprint: € 6,00

49-57

Review Article

Gesho Geshev – Innovation and Contributions

Kaloyan Tsvetkov, Svetla Georgieva

10.3897/jbgs.2020.42.25

04-05-2020

Unique: 895 | Total: 1282

171-176

Research Article

Trends and specifics in the reproductive behaviour of the bulgarian population at the beginning of the 21-st century

Toni Traykov, Kaloyan Tsvetkov

10.3897/jbgs.2019.41.7

16-08-2019

Unique: 878 | Total: 1387

43-47

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