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In page María Ponce de Bianco:

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Probably on 17 or 18 December 1977, Ponce and the rest of the group were transferred to the military airport at the southern end of the Aeroparque from the city of Buenos Aires, where they were sedated and boarded onto a Navy plane, and then thrown while alive into the sea off the coast of Santa Teresita, dying upon contact with the water.[citation needed]