@article {2009,
	title = {Hardy-Sobolev-Maz\\\'ja inequalities: symmetry and breaking symmetry of extremal functions},
	journal = {Commun. Contemp. Math. 11 (2009) 993-1007},
	number = {SISSA;06/2008/M},
	year = {2009},
	doi = {10.1142/S0219199709003636},
	url = {http://hdl.handle.net/1963/2569},
	author = {Marita Gazzini and Roberta Musina}
}
