@conference {cGasull92,
	title = {Non-linear techniques for image interpolation},
	booktitle = {VI European Signal Processing Conference},
	year = {1992},
	pages = {1473{\textendash}1476},
	isbn = {0 444 89587 6},
	author = {Gasull, A. and Marqu{\'e}s, F. and Torres, L.}
}
