ACCURATE 3D MODEL OF VENICE: PRESERVING HISTORICAL DATA AND INTRODUCING SLAM IMMS FOR CHANGE DETECTION AND UPDATING PROCEDURES - Vassena, G. P. M.; Fellin, A.; Mainardi, A.; Perfetti, L.; Cavallari, L.; Sgrenzaroli, M.; Roggeri, S.; Fassi, F. (Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., 2024)