1. 2Ashby, W. C. 1987. Forests. Pages 89-108 in W. R. Jordan, M. E. Gilpin, and J. D. Arber, editors. Restoration ecology. Cambridge University Press, Cambridge, United Kingdom.
2. 3Ashby, W. C. 1991. Surface mine tree planting in the Midwest pre- and post-Public Law 95-87. Pages 617-623 in Proceedings of the 1991 National Meeting of the American Society for Surface Mining and Reclamation, Durango, Colorado.
3. 4Ashby, W. C., and J. R. McCarthy. 1990. Compaction mitigation using plant materials. Pages 7/1-7/14 in Y. P. Chugh, D. C. Davin, and K. R. Dietz, editors. Proceedings of the First Midwestern Region Reclamation Conference. Coal Research Center, Southern Illinois University, Carbondale, Illinois.
4. 5Ashby, W. C., N. F. Rogers, and C. A. Kolar. 1981. Forest tree invasion and diversity on stripmines. Pages 273-281 in Central Hardwood Forest Conference III, University of Missouri, Columbia, Missouri.