共 50 条
- [49] 7TH SYMPOSIUM OF THE JOINT COMMITTEE FOR POWDER-METALLURGY IN HAGEN POWDER METALLURGY INTERNATIONAL, 1989, 21 (01): : 42 - 44
- [50] THE 7TH PLENARY ASSEMBLY OF THE INTERNATIONAL-RADIO-CONSULTATIVE-COMMITTEE PROCEEDINGS OF THE INSTITUTE OF RADIO ENGINEERS, 1955, 43 (02): : 132 - 139