共 15 条
[11]
RIEPE W, 1988, WISSENSCHAFT TECHNIK, V41, P216
[12]
ROBERTS F, 1957, P I ELECTR ENG, V99, P747
[13]
SHIBAOKA M, 1989, P INT C COAL SCI TOK, P117
[14]
STACH E, 1982, TXB COAL PETROLOGY, P203
[15]
1981, 6127 BRIT STAND I BR