@inproceedings{Ma05b,
 author = {Mark Manulis},
 title = {{Contributory Group Key Agreement Protocols, Revisited for Mobile Ad-Hoc Groups}},
 booktitle = {Proceedings of 2nd IEEE International Conference on Mobile Adhoc and Sensor Systems (MASS 2005)},
 pages = {811--818},
 publisher = {IEEE Computer Society},
 year = {2005}}