Introduced forest tree species: some genetic and ecological consequences.

Fady, B., (2007). Conifers network. Report of the fourth meeting, Pitlochry, United Kingdom, 18-20 October, 2003, 41-52. International Plant Genetic Resources Institute (IPGRI), Rome, Italy. English language

Attempts in identifying the origin of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) stands in Germany.

König, A. O., Maurer, W., Schmitt, H. P., Arenhövel, W., Rau, H. M., Stephan, B. R., (2007). Conifers network. Report of the fourth meeting, Pitlochry, United Kingdom, 18-20 October, 2003, 53-60. International Plant Genetic Resources Institute (IPGRI), Rome, Italy. English language

Conifers network. Report of the fourth meeting, Pitlochry, United Kingdom, 18-20 October, 2003.

Koskela, J., Samuel, C. J. A., Mátyás, C., Fady, B., (2007). Conifers network. Report of the fourth meeting, Pitlochry, United Kingdom, 18-20 October, 2003, iii + 71 pp. International Plant Genetic Resources Institute (IPGRI), Rome, Italy. English language

The introduction, evaluation and use of non-native conifer species in Britain.

Samuel, C. J. A., (2007). Conifers network. Report of the fourth meeting, Pitlochry, United Kingdom, 18-20 October, 2003, 31-34. International Plant Genetic Resources Institute (IPGRI), Rome, Italy. English language