@inproceedings{LICS-CSL-2014-HeijltjesH,
	author        = "Willem Heijltjes and Robin Houston",
	booktitle     = "{Joint Meeting of the 23rd EACSL Annual Conference on Computer Science Logic and the 29th Annual ACM/IEEE Symposium on Logic in Computer Science}",
	doi           = "10.1145/2603088.2603126",
	isbn          = "978-1-4503-2886-9",
	pages         = "10",
	publisher     = "{ACM}",
	title         = "{No proof nets for MLL with units: proof equivalence in MLL is PSPACE-complete}",
	year          = 2014,
}