by Simone Bova, Hubie Chen, Matthew Valeriote
Reference:
Generic Expression Hardness Results for Primitive Positive Formula ComparisonSimone Bova, Hubie Chen, Matthew ValerioteAutomata, Languages and Programming - 38th International Colloquium, ICALP 2011, Zurich, Switzerland, July 4-8, 2011, Proceedings, Part II, pages 344–355, 2011.
Bibtex Entry:
@inproceedings{BovaChenValeriote11,
author = {Simone Bova and
Hubie Chen and
Matthew Valeriote},
title = {Generic Expression Hardness Results for Primitive Positive Formula
Comparison},
booktitle = {Automata, Languages and Programming - 38th International Colloquium,
{ICALP} 2011, Zurich, Switzerland, July 4-8, 2011, Proceedings, Part
{II}},
pages = {344--355},
year = {2011}
}