%0 Journal Article %A Yuan, Ganghua %A Yamamoto, Masahiro %T Lipschitz stability in the determination of the principal part of a parabolic equation %J ESAIM: Control, Optimisation and Calculus of Variations %D 2009 %P 525-554 %V 15 %N 3 %I EDP-Sciences %U http://www.numdam.org/articles/10.1051/cocv:2008043/ %R 10.1051/cocv:2008043 %G en %F COCV_2009__15_3_525_0