%0 Journal Article %A Joel Hass %A Charles Frohman %T Unstable minimal surfaces and Heegaard splittings. %J Inventiones mathematicae %D 1989 %P 529-540 %V 95 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM_1989__95_3_143664/ %F IM_1989__95_3_143664