@article{ITA_2000__34_5_357_0,
     author = {Geffert, Viliam and Pop\'ely, Norbert},
     title = {A space lower bound for acceptance by one-way $\Pi _2$-alternating machines},
     journal = {RAIRO - Theoretical Informatics and Applications - Informatique Th\'eorique et Applications},
     pages = {357--372},
     publisher = {EDP-Sciences},
     volume = {34},
     number = {5},
     year = {2000},
     mrnumber = {1829232},
     zbl = {0987.68038},
     language = {en},
     url = {http://archive.numdam.org/item/ITA_2000__34_5_357_0/}
}