J. Sliseris and  K. Rocens,  Optimization of Wood Fiber Orientation Angle in Outer Layers of Variable Stiffness Plywood Plate.   journal   = {International Journal of Civil and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2013, vol. 73(1). 30 - 36
    [viewed 28 May 2022]. Available from: https://publications.waset.org/pdf/4801.