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prof Todor Delipetrov

1. prof Todor Delipetrov (2017) "Types of silica raw materials on the territory of the Republic of Macedonia" - 7. Балкански рударски конгрес
(https://ekonferencije.com/sr/rad/types-of-silica-raw-materials-/4941)

2. prof Todor Delipetrov (2017) "Usage of the method of seismic refraction while investigating coal deposits" - 7. Балкански рударски конгрес
(https://ekonferencije.com/sr/rad/usage-of-the-method-of-seismic/4932)

3. prof Todor Delipetrov (2017) "Hydraulic transport of mineral resources from the underground coal mine “Vitoliste”" - 7. Балкански рударски конгрес
(https://ekonferencije.com/sr/rad/hydraulic-transport-of-mineral/4931)

4. prof Todor Delipetrov (2017) "Exploration of underground structures with geophysical - seismic methods" - 7. Балкански рударски конгрес
(https://ekonferencije.com/sr/rad/exploration-of-underground-str/4930)