@article{TRSPY_2011_274_a8,
     author = {Aldo de Luca},
     title = {A palindromization map on free monoids},
     journal = {Informatics and Automation},
     pages = {137--147},
     year = {2011},
     volume = {274},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_2011_274_a8/}
}