REINPRECHT, Ladislav. Repairing of wooden elements by beta-method using carbon, steel or beech rods. In 41st annual meeting of IRG : Biarritz, France, 9-13 May 2010 [online]. - Stockholm : IRG, 2010, 8 p. VEGA 1/0421/10. Dostupné na internete: <http://www.irg-wp.com/IRG41-Contents.html>