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Coal characteristics of the eocene to pliocene epoch: A case study in the Berau Sub-basin, East Kalimantan, Indonesia

Sugiarto Wahyu, Rizal Yan, Syafri Ildrem and Muljana Budi

E3S Web Conf., 688 (2026) 01009

Published online: 20 January 2026

DOI: 10.1051/e3sconf/202668801009

Sugiarto Wahyu

Rizal Yan

Syafri Ildrem

Muljana Budi

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