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Brockhaus-1809: Pontus Euxinus
Brockhaus-1911: Pontus Euxinus · Pontus
Heiligenlexikon-1858: Pontus
Herder-1854: Pontus [2] · Pontus [1]
Meyers-1905: Pontus Euxīnus
Pierer-1857: Pontus Polemoniăcus · Pontus euxīnus
Vollmer-1874: Pontus