1. Heliostation (Crimea) - the thrown objects, photo and descriptions. An industrial zone. (//urban3p.ru/object965) (in Russian).
2. H. Elizabeth, 902AD Manuscript Located. Tareq Rajab Museum. Kuwait. 1998-2002. ( //www.trmkt.com/902manu.html ).
3. Polybius of Megapolis. Polybii Historiae VIII, 5 et seq.; ed. F.Hultsch (Berlin 1868) I, 623 et seq.
4. Tius Livius Patavinus. On Archimedes: XXIV, 34.
5. Plutarch, Vita Marcelli XV-XVII. Punica, XIV, 292 et seq. by Silus Italicus, ed. L. Bauer (Leipzig 1892) II, 92.