Kaminski, MichaelMichaelKaminskiTONY TAN2020-05-042020-05-042010https://scholars.lib.ntu.edu.tw/handle/123456789/490129A Note on Two-pebble Automata Over Infinite Alphabets.journal article10.3233/FI-2010-234https://doi.org/10.3233/FI-2010-234