@article {1995,
	title = {Special functions of bounded deformation},
	number = {SISSA;76/95/M},
	year = {1995},
	publisher = {SISSA Library},
	url = {http://hdl.handle.net/1963/978},
	author = {Giovanni Bellettini and Alessandra Coscia and Gianni Dal Maso}
}
