共 50 条
- [1] ECONOMIC-ASPECTS OF HIGHER UPGRADING RAW-MATERIALS IN METALLURGY NEUE HUTTE, 1990, 35 (02): : 70 - 75
- [6] ENGINEERING ASPECTS OF FIBERS AS RAW-MATERIALS FOR NONWOVENS ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1988, 195 : 15 - CELL
- [8] RAW-MATERIALS IN THE NEW INTERNATIONAL ECONOMIC ORDER REVUE CANADIENNE D ETUDES DU DEVELOPPEMENT-CANADIAN JOURNAL OF DEVELOPMENT STUDIES, 1981, 2 (01): : 116 - 132