Rauno Pääkkönen and Fabriziomaria Gobba and Leena Korpinen, LED Lighting Interviews and Assessment in Forest Machines. journal = {International Journal of Medical and Health Sciences}, [online]. World Academy of Science, Engineering and Technology. July 2015, vol. 105(9). 673 - 676 [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/10002146.