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\bibitem{2290} Hongxing Gao, Mar{\c c}al Rusi{\~n}ol, Dimosthenis Karatzas, Apostolos Antonacopoulos, \& Josep Llados. (2013). An interactive appearance-based document retrieval system for historical newspapers. In \textit{Proceedings of the International Conference on Computer Vision Theory and Applications} (pp. 84--87).

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