@misc{cambering+of+timber+composite+beams+by+means+of+screw+fasteners, author = {Giongo, Ivan i Piazza, Maurizio i Tomasi, Roberto}, title = {Cambering of timber composite beams by means of screw fasteners}, address = {Warszawa}, publisher = {Stowarzyszenie Konserwatorów Zabytków}, date = {2012} }