Analysis of information sources in references of the Wikipedia article "Nuragic civilization" in English language version.
When you look at plans of sites of the Shardana in Sardinia, in the second millennium BCE, throughout this entire period, you can see wavy walls, you can see corridors... you can see high heaps of stones, which were developed into the classical nuraghic culture of Sardinia. The only good architectural parallels are found in Sardinia and the Shardana culture.
In the nuragic sanctuaries and hoards we find an extraordinary variety of votive statuettes and models in bronze. Figures of warriors, crude and barbaric in execution but full of life, are particularly common. The warrior was armed with a dagger and bow-and-arrows or a sword, covered with a two-horned helmet and protected by a circular buckler. The dress and armament leave no doubt as to the substantial identity of the Sardinian infantryman with the raiders and mercenaries depicted on Egyptian monuments as "Shardana". At the same time numerous votive barques, also of bronze, demonstrate the importance of the sea in Sardinian life.
È certo, i nuragici erano gli Shardana.
Ma io ritengo che le conseguenze della nostra osservazione sulla continuità degli elementi eneolitici in quelli della civiltà nuragica abbiano una portata maggiore di quella veduta dal collega mio; che cioè la civiltà degli Shardana siasi qui elaborata completamente, dai suoi germi iniziali, sia qui cresciuta, battagliera, vigorosa, e che lungi dal vedere nella Sardegna l'estremo rifugio di una razza dispersa, inseguita, come una fiera fuggente, dall'elemento semitico che venne qui ad azzannarla e a soggiogarla, noi dobbiamo vedere il nido donde essa spiegò un volo ardito, dopo aver lasciato una impronta di dominio, di lotta, di tenacia, sul suolo da lei guadagnato alla civiltà.
It is most probable that among the Aegean immigrants there were also some refugees from Sardinia. This may corroborate the evidence from Medinet Habu that among the Sea Peoples there were also refugees from various part of the Mediterranean, some from Sardinia, the Shardana or Sherden. [...] It is probable that these Shardana went first to Crete and from there they joined a group of Cretans for an eastward adventure.