@Misc{ NgPiSqVe17a, author = { Nguyen, Hoai-Minh and Pinamonti, Andrea and Squassina, Marco and Vecchi, Eugenio }, title = { Some characterizations of magnetic Sobolev spaces }, journal = { Complex Variables and Elliptic Equations. }, year = { 2017 }, pages = { }, URL = { http://cvgmt.sns.it/paper/3589/ }, note = { cvgmt preprint} }