@article{DMTCS_2011_special_261_a1,
     author = {Guillon, Pierre},
     title = {Projective subdynamics and universal shifts},
     journal = {Discrete mathematics & theoretical computer science},
     year = {2011},
     volume = {DMTCS Proceedings vol. AP, Automata 2011 - 17th International Workshop on Cellular Automata and Discrete Complex Systems},
     doi = {10.46298/dmtcs.2969},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.46298/dmtcs.2969/}
}