GIORGOLO, Gianluca. A Formal Semantics for Iconic Spatial Gestures. Proceedings of the Amsterdam Colloquium, Amsterdam, p. 286–295, 2009. DOI: 10.53437/snmd6z18. Disponível em: https://platform.openjournals.nl/PAC/article/view/22608. Acesso em: 9 nov. 2026.