%0 Journal Article %A Sergey Gavrilyuk %T ‘Uncertainty’ principle in two fluid–mechanics %J ESAIM. Proceedings %D 2020 %P 47-55 %V 69 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.1051/proc/202069047/ %R 10.1051/proc/202069047 %G en %F EP_2020_69_a3