@inproceedings{LICS-2009-ChenF,
	author        = "Yijia Chen and Jörg Flum",
	booktitle     = "{Proceedings of the 24th Annual IEEE Symposium on Logic in Computer Science}",
	doi           = "10.1109/LICS.2009.11",
	isbn          = "978-0-7695-3746-7",
	pages         = "397--406",
	publisher     = "{IEEE Computer Society}",
	title         = "{A Logic for PTIME and a Parameterized Halting Problem}",
	year          = 2009,
}