@unpublished {26085,
	title = {From the wall text towards the social action: the case study of the wall writings of the Faculty of Philosophy of National and Kapodistrian University of Athens},
	year = {2013},
	type = {Poster 10th International Conference of Semiotics: Changing worlds and signs of the times, Volos},
	author = {Marina Vihou and Ilias-Vasileios Papa{\"\i}oannou and Sofia Tsioli}
}
