@Misc{ MonSch20, author = { Mondino, Andrea and Scharrer, Christian }, title = { A strict inequality for the minimisation of the Willmore functional under isoperimetric constraint }, journal = { Advances in Calculus of Variations }, year = { 2020 }, pages = { }, URL = { http://cvgmt.sns.it/paper/4920/ }, note = { cvgmt preprint} }