Links
[1] http://design.rootiers.it/strutture/sites/default/files/ESERCITAZIONE%202%20-%20TRAVATURA%20RETICOLARE_%20Cindy%20Iwuji.pdf
[2] http://design.rootiers.it/strutture/sites/default/files/ASTE%20DIAGONALI.xls
[3] http://design.rootiers.it/strutture/sites/default/files/aste%20verticali%20ed%20orizzontali%20tese%20e%20compresse.xls