%0 Journal Article %A Tommi Brander %A Jarkko Siltakoski %T Recovering a variable exponent %J Documenta mathematica %D 2021 %P 713-731 %V 26 %U http://geodesic.mathdoc.fr/articles/10.4171/dm/827/ %R 10.4171/dm/827 %F 10_4171_dm_827