共 50 条
- [41] PETROLEUM AND NATURAL-GAS BEDROCK IN THE ALPS-CARPATHIAN REGION ERDOL & KOHLE ERDGAS PETROCHEMIE, 1984, 37 (10): : 438 - 438
- [43] ACTIVITIES OF THE GERMAN PETROLEUM AND NATURAL-GAS EXTRACTION INDUSTRY IN 1985 ERDOL & KOHLE ERDGAS PETROCHEMIE, 1986, 39 (05): : 208 - 210
- [44] SUBSTITUTION OF NATURAL-GAS LIQUIDS FOR PETROLEUM IN THE SOVIET PETROCHEMICAL INDUSTRY SOVIET GEOGRAPHY, 1987, 28 (08): : 547 - 561
- [45] REGIONAL DIFFERENCES IN PRICES OF PETROLEUM-PRODUCTS AND NATURAL-GAS ERDOL & KOHLE ERDGAS PETROCHEMIE, 1980, 33 (02): : 101 - &
- [46] NATURAL-GAS HYDRATES - NATURAL-GAS IN WATER CAGES ERDOL & KOHLE ERDGAS PETROCHEMIE, 1994, 47 (10): : 360 - &
- [49] DRILLING FOR PETROLEUM AND NATURAL-GAS BY GERMAN CORPORATIONS AT HOME AND ABROAD, 1975 ERDOL & KOHLE ERDGAS PETROCHEMIE, 1976, 29 (06): : 265 - 268
- [50] SPECIFICATION ANALYSIS OF DEMAND FOR PETROLEUM-PRODUCTS, COAL, AND NATURAL-GAS REVIEW OF BUSINESS AND ECONOMIC RESEARCH, 1978, 13 (02): : 1 - 20