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SOFSEM 2009: Theory and Practice of Computer Science [E-Book] : 35th Conference on Current Trends in Theory and Practice of Computer Science, Špindlerův Mlýn, Czech Republic, January 24-30, 2009. Proceedings /
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Algorithms and Models for the Web-Graph : 6th International Workshop, WAW 2009, Barcelona, Spain, February 12-13, 2009. Proceedings [E-Book]/
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Computational Linguistics and Intelligent Text Processing [E-Book] : 10th International Conference, CICLing 2009, Mexico City, Mexico, March 1-7, 2009. Proceedings /
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Independent component analysis and signal separation : 8th international conference, ICA 2009, Paraty, Brazil, March 15-18, 2009. proceedings [E-Book] /