- Ifju, G., P. C. Ferguson, and R. G. Oderwald. 1977. Pulping and papermaking properties of southern pine harvested from beetle-infested forests. Pages 164-176. TAPPI Forest Biology and Wood Chemical Conference, 20-22 June, Madison, Wisconsin).
- Ifju, G., R. G. Oderwald, P. C. Ferguson, and H. J. Heikkenen. 1979. Evaluation of beetle-killed southern pine as a raw material for pulp and paper . TAPPI 62:77-80.
- Sinclair, S. A., and G. Ifju. 1977. Processing beetle-killed southern pine—an opinion survey in Virginia . Southern Lumberman 235:11-14.
- Sinclair, S. A., and G. Ifju. 1979. Lumber quality of beetle-killed southern pine in Virginia . Forest Products Journal 29:8-22.
- Sinclair, S. A., G. Ifju, and H. J. Heikkenen. 1977a. Bug boards-lumber yield and grade recovery from timber harvested from southern pine beetle infested forests . Southern Lumberman 234:9-11.
- Sinclair, S. A., G. Ifju, and H. J. Heikkenen. 1977b. Lumber yield and grade recovery from southern pine sawtimber after beetle attack . Southern Journal of Applied Forestry 1:17-20.
- Sinclair, S. A., G. Ifju, and J. A. Johnson. 1978. Changes in toughness of wood from beetlekilled shortleaf pine . Forest Products Journal 28:44-47.
- Sinclair, S. A., T. E. McLain, and G. Ifju. 1979a. Strength loss in small clear specimens of beetle-killed southern pine . Forest Product Journal 29:35-39.
- Sinclair, S. A., T. E. McLain, and G. Ifju. 1979b. Toughness of sap-stained southern pine salvaged after beetle attack . Wood and Fiber 11:66-72.