@article{ITA_2009__43_1_69_0,
     author = {Badr, Andrew and Geffert, Viliam and Shipman, Ian},
     title = {Hyper-minimizing minimized deterministic finite state automata},
     journal = {RAIRO - Theoretical Informatics and Applications - Informatique Th\'eorique et Applications},
     pages = {69--94},
     year = {2009},
     publisher = {EDP Sciences},
     volume = {43},
     number = {1},
     doi = {10.1051/ita:2007061},
     mrnumber = {2483445},
     zbl = {1170.68023},
     language = {en},
     url = {https://www.numdam.org/articles/10.1051/ita:2007061/}
}