@inproceedings{ICALP-v1-2011-GuoLV,
	author        = "Heng Guo and Pinyan Lu and Leslie G. Valiant",
	booktitle     = "{Proceedings of the 38th International Colloquium on Automata, Languages and Programming, Part I}",
	doi           = "10.1007/978-3-642-22006-7_60",
	isbn          = "978-3-642-22005-0",
	pages         = "712--723",
	publisher     = "{Springer International Publishing}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{The Complexity of Symmetric Boolean Parity Holant Problems —}",
	volume        = 6755,
	year          = 2011,
}