@conference {cCasas96a,
	title = {Strong edge features for image coding},
	booktitle = {International Symposium on Mathematical Morphology and its Applications to Image and Signal Processing III},
	year = {1996},
	pages = {443{\textendash}450},
	isbn = {0-7923-9733-9},
	author = {Casas, J. and Torres, L.}
}
