%0 Journal Article %A Jacek Bojarski %A Tomasz MaƂolepszy %A Janusz Matkowski %T A differential equation related to the $\mathbf{l}^{p}$-norms %J Annales Polonici Mathematici %D 2011 %P 251-265 %V 101 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap101-3-5/ %R 10.4064/ap101-3-5 %G en %F 10_4064_ap101_3_5