Х. Тодорова, Иван Вайсов (H. Todorova, Ivan Vaisov) – "Новокаменната епоха в България" ("The Neolithic period in Bulgaria") (Издателство Наука и Изкуство (Science and Art Publishing House), Sofia).
Events
Conservators use a sonar probe mounted with two miniature video cameras to remove any remaining clay from inside the Riace bronzes.