00689naa#a2200193#i#450# EN\\bibl\105178 20251211051727.4 2949-2440 20251008b2025####ek#y0engy0150####ca RU The Eastern Turkmenistan multi-layer deposits development and the disadvantages of their accelerated commissioning into pilot operation Journal article Astrakhan Astrakhan State Technical University 2025 8 с. Journal article local Горное дело. 622 Gurbanguly Yazyev Ovezov Muhammetrahim Ovezmuhammedovich Esedulaev Rahmanguly vestnik.astu.ru