@conference {cGasull89,
	title = {Automatic left ventricular contour for volume calculation},
	booktitle = {Ultrasonics International 89},
	year = {1989},
	pages = {123{\textendash}126},
	isbn = {SN.},
	author = {Gasull, A. and Vazquez, G.}
}
@conference {cVazquez89,
	title = {Constant variance transversal filtering for adaptive channel equalization},
	booktitle = {INTERNATIONAL CONFERENCE ON SONAR SIGNAL PROCESSING},
	year = {1989},
	pages = {212{\textendash}215},
	isbn = {0-7923-9733-9},
	author = {Vazquez, G. and Gasull, A. and Sanchez, J. and Lagunas, M.}
}
