@conference {InfBal,
	title = {Typing Dynamic Roles in Multiparty Interaction},
	booktitle = {Simp{\'o}sio de Inform{\'a}tica (INForum)},
	year = {2011},
	note = {n/a},
	abstract = {n/a},
	author = {P. Baltazar and V. T. Vasconcelos and H. T. Vieira}
}
