@inproceedings{TPDL-2013-MetsGG,
	author        = "Õnne Mets and Silvia Gstrein and Veronika Gründhammer",
	booktitle     = "{Proceedings of the 17th International Conference on Theory and Practice of Digital Libraries}",
	doi           = "10.1007/978-3-642-40501-3_50",
	isbn          = "978-3-642-40500-6",
	pages         = "417--420",
	publisher     = "{Springer}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Evolution of eBooks on Demand Web-Based Service: A Perspective through Surveys}",
	volume        = 8092,
	year          = 2013,
}