1. Akalp, T. (1978). Yield investigations in Picea orieantalis (L.) forests in Turkey forests. Postgraduate thesis, The Graduate School of Natural and Applied Sciences, Istanbul University, Istanbul, Turkey.
2. Alemdag, I. S. (1991). National site index and height-growth curves for white spruce growing in natural stands in Canada. Natural Forestry Institute, Forestry Canada, Chalk River, Ontario, Canada.
3. Altun, L. (1995). Affects of forest site factors on distinguishing of forest site unity in Trabzon-Maçka Ormanustu’s forest were studied. Postgraduate thesis, The Graduate School of Natural and Applied Sciences, Karadeniz Technical University, Trabzon, Turkey.
4. Altun, L., Musaoglu, N., Yilmaz, M., Kantarci, M. D., Ormeci, C., Kalay, H. Z., et al. (2002). The importance of geographic information systems and remote Sensing in forest site classification. Second International Karadeniz Forestry Congress (Vol. II, pp. 744–755), Artvin, Turkey.
5. Anonymous (2001). Artvin meteorology station climate dates.