Links
[1] http://design.rootiers.it/strutture/forum/13
[2] http://design.rootiers.it/strutture/sites/default/files/Pre-dimensionamento%20travatura%20reticolare.pdf
[3] http://design.rootiers.it/strutture/sites/default/files/Ghaemmaghami.sdb
[4] http://design.rootiers.it/strutture/sites/default/files/consegnaSAP15dic..xls