共 69 条
[2]
[Anonymous], MIDDL E OIL GAS
[3]
[Anonymous], 1995, EN POL RUSS FED 1995
[4]
[Anonymous], 517A HARV U HARV I I
[5]
[Anonymous], B US BUR MIN
[7]
Barnes Douglas F., 1992, UNDERSTANDING FUELWO
[8]
BHATTACHARYA SC, 1995, NATURAL RESOURSES FO, V19, P135
[9]
*CDIAC, 1994, TRENDS 93 COMP DAT G
[10]
CORNOTGANDOLPHE S, 1994, ADEQUATE SECURE GAS