@article{ITA_1990__24_5_471_0,
     author = {Huckenbeck, Ulrich},
     title = {On geometric automata which can nondeterministically choose auxiliary points},
     journal = {RAIRO - Theoretical Informatics and Applications - Informatique Th\'eorique et Applications},
     pages = {471--487},
     publisher = {EDP-Sciences},
     volume = {24},
     number = {5},
     year = {1990},
     mrnumber = {1080502},
     zbl = {0704.68101},
     language = {en},
     url = {http://archive.numdam.org/item/ITA_1990__24_5_471_0/}
}