A Stope Mining Design with Consideration of Hanging Wall When Transitioning from Open Pit Mining to Underground Mining for Sepon Gold Mine Deposit, Laos av Seelae Phaisopha, Hideki Shimada, Takashi Sasaoka, Akihiro Hamanaka, Phanthoudeth Pongpanya, Seva Shorin, Khounma Senthavisouk

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