@article{DMTCS_1998_2_a1,
     author = {Duchon, Philippe},
     title = {Right-cancellability of a family of operations on binary trees},
     journal = {Discrete mathematics & theoretical computer science},
     year = {1998},
     volume = {2},
     doi = {10.46298/dmtcs.248},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.46298/dmtcs.248/}
}