@InProceedings{Policy_based_Access_Control_for_Task_Computing_Using_Rei, author = "Ryusuke Masuoka, Mohinder Chopra, Zhexuan Song, Yannis K Labrou, Lalana Kagal, and Tim Finin", title = "{Policy-based Access Control for Task Computing Using Rei}", month = "May", year = "2005", series = "WWW 2005", pages = "37-43", booktitle = " Proceedings of the Policy Management for the Web Workshop", publisher = "W3C", }