Set-off as a Means for Extinguishing Financial (Public) Obligations in the Republic of Bulgaria von Dimitrov, P.V.

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Application of natural nanosized materials (nano-fossils) from the Black Sea to agriculture, nanotechnologies and new materials von Dimitrov, D., Dimitrov, P., Peychev, V., Slavova, K.

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Ancient coastlines of the Black Sea and conditions for human presence – Black Sea expedition 2011 von Slavova, K., Chterev, K., Dimitrov, D., Peychev, V., Dimitrov, P.

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