Links
[1] http://design.rootiers.it/strutture/forum/13
[2] http://design.rootiers.it/strutture/taxonomy/term/2
[3] http://design.rootiers.it/strutture/sites/default/files/Esercitazione%202_0.pdf
[4] http://design.rootiers.it/strutture/sites/default/files/ripartizione_forze%20sismiche_2.xls