Guler, C., H. Ibrahim Sahin, and S. Aliogullari. “Effect of Spacing on Some Mechanical Properties of Narrow Leaved Ash (Fraxinus Angustifolia) Wood”. Maderas-Cienc Tecnol, vol. 17, no. 4, Dec. 2015, pp. 773-8, https://revistas.ubiobio.cl/index.php/MCT/article/view/2183.