共 50 条
- [24] FUTURE-PROBLEMS OF ENVIRONMENTAL-PROTECTION IN THE CEMENT INDUSTRY ZEMENT-KALK-GIPS, 1980, 33 (01): : 1 - 9
- [25] PROBLEMS OF ENVIRONMENTAL-PROTECTION DURING DRILL HOLE CONSTRUCTION NEFTYANOE KHOZYAISTVO, 1980, (11): : 49 - 52
- [28] GROWING SENSE OF ENERGY AND ENVIRONMENTAL-PROTECTION PROBLEMS IN USA METALL, 1975, 29 (12): : 1245 - 1247
- [29] MULTILATERAL EAST-WEST COOPERATION IN AREA OF ENVIRONMENTAL-PROTECTION IN EUROPE EUROPA ARCHIV, 1976, 31 (22): : 725 - 732
- [30] ENVIRONMENTAL-PROTECTION AND INDUSTRY FRESENIUS ZEITSCHRIFT FUR ANALYTISCHE CHEMIE, 1976, 282 (04): : 389 - 394