@inproceedings{1046720, title = "Refining logical characterization of advice complexity classes", author = "Atserias, Albert", year = "1997", pages = "157-168", publisher = "Πανεπιστήμιο Κύπρου", booktitle = "Α' Πανελλήνιο Συμπόσιο Λογικής: πρακτικά" }