共 67 条
[61]
VANZOONEN D, 1963, J I PET, V49, P385
[62]
WEIL CS, 1960, ARCH ENV HLTH, V1
[63]
WOLK RH, 1975, AM CHEM SOC DIV FUEL, V20, P116
[64]
ZAWADZKI R, UNPUBLISHED
[65]
1979, REFINING COAL SHALE
[66]
1978, WORLD ENERGY OUT APR
[67]
1970, Patent No. 3523073