1. Bloomberg News, 1999a. China's 1998 LPG imports rise 33% as demand surges. Report Says, 10 February.
2. Bloomberg News, 1999b. China coal production for third quarter to be 258 million tons, 4 August.
3. Bloomberg News, 1999c. China's Jan–Aug coal output falls 11.55% to 661 million tons, 8 October.
4. Bloomberg News, 1999d. China's coal imports could surge to 50 Mln tonnes on reforms, 17 November.
5. Chang Weimin, Zhao Gang, 1999. Miners face uncertainty. China Daily Business Weekly, 5 December, http://www.chinadaily.com.cn/bwdb/1999/12/b1-1coal.co5.html.