- Amani, M., 1991. Silviculture. Course Notes, Chaloos Branch, Islamic Azad Universit, Chaloos, 169p (In Persian).
- Amani, M., Ekhlasi, Gh., Esmaeilnia, M., Hassani, M., Yazdani, Sh. and Beheshti, H., 1996. Preliminary results of qualitative, quantitative and silvicultural investigation in young plantation of Maple (Acer velutinum Boiss). Pajouhesh & Sazandegi, 31(2): 6-21 (In Persian).
- Bastien, Y., 1995. L'expérience danoise d'éclairci de hetre de totterup. Revue Forestière Française, 2: 133-136.
- del Río, M., Bravo-Oviedo, J.A., Pretzsch, H., Löf, M. and Ruíz-Peinado, R., 2017. A review of thinning effects on Scots pine stands: From growth and yield to new challenges under global change. Forest Systems, 26(2): 1-19.
- Firouzan, A.H., Bonyad, A. and Falahchai, M.M., 2006. The Investigation of thinning effects on the quantitative and qualitative variables on loblolly pine (Pinus taeda) in Lahijan region. Journal of Agricultural Science, 12(3): 513-524 (In Persian).
- Forouzesh-Sotgavaberi, R., Ahmadi, M.T., Etemad, V. and Saeidi, H.R., 2009. Investigation on quantitative and qualitative characteristics of 19-years old plantation of Caucasian alder (Alnus subcordata) in Siahkal region. Iranian Journal of Forest, 1(2): 137-150 (In Persian).
- Gorji Bahri, Y. and Hemati, A., 1999. Results of loblolly pine (Pinus taeda L.) and Caucasian alder (Alnus subcordata C. A. Mey.) silvicultural operations in the Caspian low land regions of Iran. Pajouhesh & Sazandegi, 63: 2-9 (In Persian).
- Hassani, M. and Amani, M., 2004. Effects of thinning on plantation of Maple (Acer velutinum Boiss.) at Emamzadeh-Abdullah experimental site after eight years. Iranian Journal of Forest and Poplar Research, 12(3): 339-370 (In Persian).
- Hassani, M., Eslami, A. and Hadizadeh Marjani, Gh.R., 2016. The effect of thinning on young plantations of velvet maple (Acer velutinum Boiss.) on the quantitative and qualitative characteristics of future trees (Case study: Holomsar-Amol). Journal of Plant Researches (Iranian Journal of Biology), 29(2): 339-351 (In Persian).
- Lindgren, P.M.F. and Sullivan, T.P., 2013. Long-term responses of tree and stand growth of young lodgepole pine to pre-commercial thinning and repeated fertilization. Forest Ecology and Management, 307: 155-164.
- Liziniewicz, M., 2014. Influence of spacing and thinning on wood properties in conifer plantations. Ph.D. thesis, Faculty of Forest Sciences, Swedish University of Agricultural Sciences, Alnarp, 61p.
- Lowell, E.C., Dykstra, D.P. and Monserud, R.A., 2012. Evaluating effects of thinning on wood quality in southeast Alaska. Western Journal of Applied Forestry, 27(2): 72-83.
- Pourmajidian, M.R., Ardeshiri, A., Fallah, A. and Hodjati, S.M., 2017. The effect of thinning on Alder (Alnus subcordata) and Persian maple (Acer velutinum) plantations in Chendella Forest, Mazandaran. Iranian Journal of Forest, 9(2): 261-272 (In Persian).
- Sullivan, T.P. and Sullivan, D.S., 2016. Acceleration of old-growth structural attributes in lodgepole pine forest: Tree growth and stand structure 25 years after thinning. Forest Ecology and Management, 365: 96-106.
- Toromani, E., Mine, V., Diku, A., Saliaj, E. and Seci, A., 2014. The effect of thinning on oak forests growth. Case study from Dumreja in central Albania. 1st Conference of the COST Action FP 1301. Italy, 26 Feb. 2014, 1p.
- Townend, J., 2002. Practical Statistics for Environmental and Biological Scientists. John Wiley & Sons, England, 288p.