Links
[1] http://design.rootiers.it/strutture/sites/default/files/vista%20esterna.pdf
[2] http://design.rootiers.it/strutture/sites/default/files/viste%20interne%20struttura_.pdf
[3] http://design.rootiers.it/strutture/sites/default/files/Dimensionamento%20e%20verifiche.pdf