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Between petty corruption and criminal extortion : how entrepreneurs in Bulgaria and Romania operate within a devil's circle
Vorley, Tim, (2016)
Modeling the impact of macroeconomic indicators on the Corruption Perceptions Index : example of Ukraine, Bulgaria, and Georgia
Rubakha, Mariya, (2023)
Corruption in the Bulgarian post-Communist transformation
Chavdarova, Tanja, (2001)
Branching Process Modelling of COVID-19 Pandemic Including Immunity and Vaccination
Atanasov, Dimitar, (2022)
Branching Processes as Models of Progenitor Cell Populations and Estimation of the Offspring Distributions
Yakovlev, Andrei Y., (2008)
Critical randomly indexed branching processes
Mitov, Georgi K., (2009)