@inproceedings { PajaDalpPogg2012,
	title = {Modelling Security Requirements in Socio-Technical Systems with STS-Tool},
	journal = {Forum of the Conference on Advanced Information Systems Engineering},
	volume = {855},
	year = {2012},
	pages = {155--162},
	author = {E. Paja and F. Dalpiaz and M. Poggianella and P. Roberti and P. Giorgini}
}