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4by Galina Stefanova, Tanya Girova, Velizar Gochev, Magdalena Stoyanova, Zhana Petkova, Albena Stoyanova, Valtcho D. ZheljazkovGet full text
Published 2020-12-01
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7by Stanko Stankov, Hafize Fidan, Zhana Petkova, Magdalena Stoyanova, Nadezhda Petkova, Albena Stoyanova, Ivanka Semerdjieva, Tzenka Radoukova, Valtcho D. ZheljazkovGet full text
Published 2020-09-01
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8by Valtcho D. Zheljazkov, Charles L. Cantrell, Ivanka Semerdjieva, Tzenka Radoukova, Albena Stoyanova, Vasilina Maneva, Miroslava Kačániová, Tess Astatkie, Daniela Borisova, Ivayla Dincheva, Ivan SalamonGet full text
Published 2021-06-01
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