* * * - Brown's Nautical Almanac - Brown, Son & Ferguson Ltd. Glasgow. UK.

* * * - Chart 5011. Symbols & Abbreviations used on Admiralty Charts - Hydrographic Office, 1995. Taunton. UK.

* * * - Table Nautice DH-90 - Directia Hidrografica Maritima, 1989. Constanta. Romania.

Beziris, A.; Popa, C.; Scurtu, Ghe.; Bantas, A. - Dictionar Maritim Englez - Roman - Editura Tehnica, 1982. Bucharest. Romania.

Beziris, A.; Popa, C.; Scurtu, Ghe.; Bamboi, Ghe. - Dictionar Maritim Roman - Englez - Editura Tehnica, 1985. Bucharest. Romania.

Bibicescu, Ghe.; Tudorica, A.; Scurtu, Ghe.; Chirita, M. - Lexicon Maritim Englez - Roman - Editura Stiintifica, 1971. Bucharest. Romania.

Blance, A. G., B.Sc. - Norie's Nautical Tables - Imray Laurie Norie & Wilson Ltd, 1994. Saint Ives. UK.

Bowditch, N. - The American Practical Navigator - National Imagery and Mapping Agency, 2002 Bicentennial Edition. Bethesda, Maryland. USA.

Chirita, M.; Pavica, V. - Navigatie - Editura Militara, 1959. Bucharest. Romania.

Popa, C. I. - English - Romanian Dictionary. Maritime Terminology - Editura Dobrogea, 1994. Constanta. Romania.