1. Postdoctoral, Dept. of Architecture, Design and Urban Planning, Univ. of Sassari, Palazzo del Pou Salit, Piazza Duomo n.6, 07041 Alghero, Italy (corresponding author).
2. Professor, Dept. of Architecture, Design and Urban Planning, Univ. of Sassari, Palazzo del Pou Salit, Piazza Duomo n.6, 07041 Alghero, Italy.
3. Full Professor, Dept. of Engineering and Architecture, Univ. of Trieste, Piazzale Europa n.1, 34127 Trieste, Italy.
4. Rubner Haus AG SpA, Handwerkerzone n.4, 39030 Chienes, Italy.