共 9 条
[1]
EICH GF, 1978, COURIER BRUSSEL, P98
[2]
*NAT FOR ASS CTR C, 1979, OPEC B
[3]
SCHIRRMANN I, 1978, IPW BERICHTE, P35
[4]
1978, OPEC B 0319, P8
[5]
1978, FAR EASTERN EC 1229, P32
[6]
1979, OPEC B 0319
[7]
1978, ECONOMIST LONDO 0930
[8]
1979, WELT BONN B
[9]
1979, CAPITAL HAMBURG