en interpretations of an indistinct sonar image taken by P. Lindberg and D. Åsberg while treasure-hunting on the floor of the northern Baltic Sea at the center of the Bothnian Sea in June 2011
fr anomalie de forme circulaire découvert en juin 2011 en plein milieu de la mer Baltique
pt formação no fundo do Mar Báltico descoberta em 2011 traducción automática