المؤلفون: Melnychuk, Oleksandr V., Ozheredov, Serhiy, Rakhmetov, Dzhamal B., Shysha, Olena O., Rakhmetova, Svitlana O., Yemets, Alla I., Blume, Yaroslav B.

المصدر: Proceedings of the Latvian Academy of Sciences. Section B. Natural, Exact, and Applied Sciences. ; volume 74, issue 3, page 206-214 ; ISSN 1407-009X

الاتاحة: http://dx.doi.org/10.2478/prolas-2020-0032
https://content.sciendo.com/view/journals/prolas/74/3/article-p206.xml
https://www.sciendo.com/pdf/10.2478/prolas-2020-0032