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@article{CHALE04, author = {Chalopin, Jérémie and Leung, Hing}, doi = {10.1016/s0304-3975(03)00344-x}, issn = {0304-3975}, journal = {Theoretical Computer Science}, month = {January}, number = {1–3}, pages = {489–499}, publisher = {Elsevier BV}, title = {On factorization forests of finite height}, volume = {310}, year = {2004} }