%0 Journal Article %A Kim Dang Phung %A Gengsheng Wang %T An observability estimate for parabolic equations from a measurable set in time and its applications %J Journal of the European Mathematical Society %D 2013 %P 681-703 %V 15 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4171/jems/371/ %R 10.4171/jems/371 %F JEMS_2013_15_2_a8