ISSN 0536-1028 (Print)              ISSN 2686-9853 (Online)  

Stanislav Yordanov Topalov

Assoc. Prof. PhD. Faculty of Mining Technology - MTF

"Department of Mine Surveying and Geodesy"

University of Mining and Geology “St. Ivan Rilski”

Studentski grad, 1700, Sofia, Bulgaria

Тел.: +359 2 8060291

E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

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