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- [5] USING CAD/CAM IN BUILDING MUFFLERS AND EMISSION CONTROL-SYSTEMS KUNSTSTOFFE-GERMAN PLASTICS, 1989, 79 (10): : CA214 - CA218
- [6] USING CAD/CAM IN BUILDING MUFFLERS AND EMISSION CONTROL-SYSTEMS F&M-FEINWERKTECHNIK & MESSTECHNIK, 1989, 97 (10): : CA214 - +