共 50 条
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- [2] TRACE-ELEMENTS IN COAL AND THEIR DISTRIBUTION CHARACTERISTICS DURING COAL COMBUSTION SCIENTIA SINICA SERIES A-MATHEMATICAL PHYSICAL ASTRONOMICAL & TECHNICAL SCIENCES, 1987, 30 (03): : 288 - 297
- [5] TRACE-ELEMENTS IN THE KARLOVO COAL DEPOSIT DOKLADI NA BOLGARSKATA AKADEMIYA NA NAUKITE, 1991, 44 (11): : 67 - 70
- [6] PRECISION ON THE DETERMINATION OF TRACE-ELEMENTS IN COAL ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1979, (APR): : 52 - &
- [9] TRACE-ELEMENTS IN KOSOVAS BASEN COAL ERDOL & KOHLE ERDGAS PETROCHEMIE, 1983, 36 (09): : 428 - 428