| 1008 | ENR | G. Campbell Watkins | Petro Markets/Probing the Economics of Continental Energy | 1989 |
| 1577 | REG/ENR/MAT | The World Bank | Hungary. A regulatory and structural review of selected infrastucture sectors | 2000 |
| 1850 | ENR/APS/REF | Hudson Institute Executive Briefing / Kathy Harkness Kushner | Energy, Economy, and Enviroment: A Balanced Policy for the 1990's | 1992 |
| 2008 | ENR | World Energy Council | Living in One World | 2001 |