@article{ITA_2012__46_2_291_0,
     author = {Carraro, Alberto and Salibra, Antonino},
     title = {Easy lambda-terms are not always simple},
     journal = {RAIRO - Theoretical Informatics and Applications - Informatique Th\'eorique et Applications},
     pages = {291--314},
     publisher = {EDP-Sciences},
     volume = {46},
     number = {2},
     year = {2012},
     doi = {10.1051/ita/2012005},
     mrnumber = {2931250},
     zbl = {1253.03035},
     language = {en},
     url = {http://www.numdam.org/articles/10.1051/ita/2012005/}
}