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Svetla Boneva University of National and World Economy https://doi.org/10.53656/his2025-6s-3-ret  Abstract. The aim of this study is to analyze the development,...

Pencho D. Penchev, Yanko Hristozov University of National and World Economy https://doi.org/10.53656/his2025-6s-2-fai Abstract. The article analyzes the weaknesses of organized...

Radostin Vazov University of National and World Economy https://doi.org/10.53656/his2025-6s-1-fai Abstract. This article analyzes how Mount Athos became a durable economic...

Установената численост на зимуващите водолюбиви видове птици у нас е по-висока спрямо данните от миналогодишното преброяване – 99 вида с...

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Рубриката се води от доц. д-р Веселин Ненков >> Изтеглете статията в PDF <<

1) Sava Grozdev, 2) Veselin Nenkov 1) University of Finance, Business and Entrepreneurship – Sofia (Bulgaria) 2) „Nikola Vaptsarov“ Naval...

Tanka Milkova University of Economics – Varna (Bulgaria) Abstract. In this paper some aspects of financial mathematics and in particular...

1) Веселин Ненков, 2) Станислав Стефанов, Хаим Хаимов 1) Висше военноморско училище „Н. Й. Вапцаров“ – Варна 2) Технически университет...

1) Ivaylo Staribratov, 2) Radka Todorova 1) University of Plovdiv “Paisii Hilendarski” (Bulgaria) 2) Mathematical School “Academic Kiril Popov” –...