use [ ... ] instead of ( ... )

right. It's not a simple array but a reference to a nameless array.
See also   perldoc perllol,   perldoc perlreftut,   perldoc perlref   and   perldoc perldata   for more syntactical details (the usual suspects =))

In reply to Re^2: Accessing an AoHoAoH by Happy-the-monk
in thread Accessing an AoHoAoH by bradcathey

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