@article{ITA_2016__50_1_67_0,
     author = {Brunotte, Horst},
     title = {Digital semigroups },
     journal = {RAIRO - Theoretical Informatics and Applications - Informatique Th\'eorique et Applications},
     pages = {67--79},
     publisher = {EDP-Sciences},
     volume = {50},
     number = {1},
     year = {2016},
     doi = {10.1051/ita/2016005},
     zbl = {1391.11124},
     mrnumber = {3518159},
     language = {en},
     url = {http://www.numdam.org/articles/10.1051/ita/2016005/}
}