@article{ITA_2006__40_4_593_0,
     author = {Micheli, Anne and Rossin, Dominique},
     title = {Edit distance between unlabeled ordered trees},
     journal = {RAIRO - Theoretical Informatics and Applications - Informatique Th\'eorique et Applications},
     pages = {593--609},
     publisher = {EDP-Sciences},
     volume = {40},
     number = {4},
     year = {2006},
     doi = {10.1051/ita:2006043},
     mrnumber = {2277052},
     zbl = {1114.05031},
     language = {en},
     url = {http://archive.numdam.org/articles/10.1051/ita:2006043/}
}