"Upcoming" title translation

Hi,
I have the calendar and date modules installed, last stable versions.

The block "Upcoming", that has the latest events in the calendar, works fine itself.
But I'd like to know how could I translate its title, "Upcoming". I see other blocks' titles are translated - only I don't know where I can find it - in the "Translate interface" can't find such a string.

Thanks a lot
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