Westley K., Dix J. Coastal environments and their role in prehistoric migrations // Journal of Marine Archaeology. — Vol. 1. — 1 July 2006. — P. 9.
56
Цезарь Г. Ю. Записки о Галльской войне. — Книга IV. — Глава 29.
57
Ekman M. A concise history of the theories of tides, precession-nutation and polar motion (from antiquity to 1950) // Surveys in Geophysics. — 1993. — Vol. 14. — Issue 6. — P. 585–617 ().