@conference {cVidal98,
	title = {Autentificacion digital de imagen, marcado y detecci{\'o}n {\'o}ptimos},
	booktitle = {XIII Simposium Nacional de la Uni{\'o}n Cient{\'\i}fica Internacional de Radio},
	year = {1998},
	pages = {105{\textendash}106},
	isbn = {84-89654-12-3},
	author = {Vidal, J. and Elisa Sayrol and Lagunas, M.}
}
@conference {cGasull89a,
	title = {Automated left ventricular contour extraction and volume calculation form echocardiographic images},
	booktitle = {Ultrasonics International 89},
	year = {1989},
	pages = {1{\textendash}4},
	isbn = {SN.},
	author = {Gasull, A. and Alquezar, R. and Torres, L. and Sallent, S. and Marqu{\'e}s, F. and Vidal, J. and Sangr{\'a}, E.}
}
