@inproceedings{karameWWW11,
 author = {Karame,, Ghassan and Francillon,, Aur\'elien and \v{C}apkun,, Srdjan},
 title = {Pay as you Browse: Microcomputations as Micropayments in Web-based Services},
 booktitle = {Proceedings of the International World Wide Web Conference (WWW)},
 year = {2011}
}