%0 Journal Article %A Aigli Papantonopoulou %T Minimal Surface in the 4-Quadric %J Ευκλείδης Γ %D 1990 %P 107-112 %V 25 %I mathdoc %U http://geodesic.mathdoc.fr/item/EUG_1990__25_a7/ %G gr %F EUG_1990__25_a7