Tuğrul Varol and  Halil Barış Özel,  The Efficiency of Mechanization in Weed Control in Artificial Regeneration of Oriental Beech (Fagus orientalis Lipsky.).   journal   = {International Journal of Biological and Ecological Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2015, vol. 97(1). 18 - 21
    [viewed 01 December 2021]. Available from: https://publications.waset.org/pdf/10000285.