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Pei J, Liu J, Wang H, Wang K, Yu PS, Wang J. Efficiently mining frequent closed partial orders (extended abstract). In: Proceedings IEEE International Conference on Data Mining Icdm. 2005. p. 753–6.

Pei, J., et al. “Efficiently mining frequent closed partial orders (extended abstract).” Proceedings IEEE International Conference on Data Mining Icdm, 2005, pp. 753–56. Scopus, doi:10.1109/ICDM.2005.57.

Pei J, Liu J, Wang H, Wang K, Yu PS, Wang J. Efficiently mining frequent closed partial orders (extended abstract). Proceedings IEEE International Conference on Data Mining Icdm. 2005. p. 753–756.