@article{ITA_1991__25_3_247_0,
     author = {Head, Tom},
     title = {The topologies of sofic subshifts have computable {Pierce} invariants},
     journal = {RAIRO. Informatique th\'eorique et applications},
     pages = {247--254},
     year = {1991},
     publisher = {EDP-Sciences},
     volume = {25},
     number = {3},
     mrnumber = {1119043},
     zbl = {0734.68058},
     language = {en},
     url = {https://www.numdam.org/item/ITA_1991__25_3_247_0/}
}