@article{ITA_2009__43_4_667_0,
     author = {\`Alvarez, Carme and Serna, Maria},
     title = {On the proper intervalization of colored caterpillar trees},
     journal = {RAIRO - Theoretical Informatics and Applications - Informatique Th\'eorique et Applications},
     pages = {667--686},
     publisher = {EDP-Sciences},
     volume = {43},
     number = {4},
     year = {2009},
     doi = {10.1051/ita/2009014},
     mrnumber = {2589988},
     language = {en},
     url = {http://www.numdam.org/articles/10.1051/ita/2009014/}
}