1. Beaudry, L., 1989. Disc trenchers and cone scarifiers. For. Can./BC Min. For., Victoria, BC, FRDA Memo 099, 6 pp
2. Bedford, L., McMinn, R.G. 1990. Trials to appraise the biological effectiveness of mechanical site preparation equipment in British Columbia: FRDA Project 1.10. p. 3–12. In: Titus, B.D., Lavigne, M.B., Newton, P.F., Meades, W.J. (Eds.). The Silvics and Ecology of Boreal Spruces. 1989 IUFRO Working Party S1. 05–12 Proc. Symp. For. Can., St. John's, Newfoundland, Inf. Rep. N-X-271
3. Bedford, L., Sutton, R.F., 1999. White spruce establishment after backlog site preparation, Inga Lake, British Columbia. New Forests, submitted for publication
4. Bedford, L., Sutton, R.F., Stordeur, L., Grismer, M., 1999. Site preparation for establishing white spruce in the Boreal White and Black Spruce Zone of interior British Columbia; the Wonowon and Iron Creek trials. New Forests, submitted for publication
5. Blashill, W., 1994. Mechanical site preparation study: growing degree day and hour calculation 1988/1989/1990, Inga Lake, Iron Creek, Mackenzie, Bednesti, and weather and soil data] results summary. Reports on file with L. Bedford, BC Mm. For., For. Practices Branch, Victoria, BC, 50 pp. and 71 pp