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Brockhaus-1837: Buenos Ayres
Brockhaus-1911: Buenos Aires
DamenConvLex-1834: Buenos Ayres
Herder-1854: Buenos-Ayres
Meyers-1905: Buenos Aires [2] · Buenos Aires [1]
Pierer-1857: Buēnos-Ayres
Roell-1912: Buenos Aires' Schnellbahnen