Harmer, R. (2002). Creation of woodlands by natural colonisation in lowland England. In: Restocking of storm-felled forests: new approaches. Proceedings of an International Workshop in Denmark, March 2001. Ed. A. Brunner. Danish Centre for Forest, Landscape and Planning Report No. 12, Hørsholm, 109-111.
Harmer, R., Peterken, G., Kerr, G. and Poulton, P. (2001). Vegetation changes during 100 years of development of two secondary woodlands on abandoned arable land. Biological Conservation 101, 291-304.
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Harmer, R. (1999). Creating new native woodlands: turning ideas into reality. Forestry Commission Information Note 15 (PDF-92K)
Harmer, R. (1999). Using natural colonisation to create or expand new woodlands. Forestry Commission Information Note 23 (PDF-63K)
Hodge, S. J. and Harmer, R. (1996). Woody colonisation on unmanaged urban and ex-industrial sites. Forestry 69, 245-261.
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Harmer, R. and Kerr, G. (1995). Creating woodlands: to plant trees or not? In The ecology of woodland creation. (ed. R. Ferris-Kaan) John Wiley & Sons, 113 –128.
Hodge, S.J. and Harmer, R. (1995). The creation of woodland habitats in urban and post-industrial environments. Land Contamination and Reclamation, 3, 86-88.