@article{10_4171_dm_62,
     author = {Kengo Matsumoto},
     title = {Presentations of subshifts and their topological conjugacy invariants},
     journal = {Documenta mathematica},
     pages = {285--340},
     year = {1999},
     volume = {4},
     doi = {10.4171/dm/62},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/dm/62/}
}