@conference {DBLP:conf/istar/AlmeidaG013,
	title = {A Systematic Comparison of i* Modelling Tools Based on Syntactic and Well-formedness Rules},
	booktitle = {iStar},
	year = {2013},
	note = {n/a},
	pages = {43-48},
	abstract = {n/a},
	author = {Catarina Almeida and Goul{\~a}o, Miguel and Ara{\'u}jo, Jo{\~a}o}
}
