%0 Journal Article %A Andrea Bonfiglioli %A Francesco Uguzzoni %T Editorial note to: “Some non-existence results for critical equations on step-two stratified groups” [C. R. Acad. Sci. Paris, Ser. I 336 (2003) 817–822] %J Comptes Rendus. Mathématique %D 2003 %P 171 %V 337 %N 3 %I Elsevier %R 10.1016/S1631-073X(03)00315-7 %G en %F CRMATH_2003__337_3_171_0