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- [5] ON PREMISES FOR MECHANICAL GRADING OF TIMBER PAPER JA PUU-PAPPER OCH TRA, 1969, 51 (04): : 373 - &
- [7] Machine grading of timber on edge 5TH WORLD CONFERENCE ON TIMBER ENGINEERING, VOL 2, PROCEEDINGS, 1998, : 714 - 715
- [8] Strength grading of hardwood structural timber 8TH HARDWOOD CONFERENCE WITH SPECIAL FOCUS ON NEW ASPECTS ON HARDWOOD UTILIZATION - FROM SCIENCE TO TECHNOLOGY, 2018, : 166 - 167
- [10] Stress grading of recycled lumber and timber STRUCTURAL ENGINEERING IN THE 21ST CENTURY, 1999, : 650 - 653