@Article{ bec09b, author = { Beck, Lisa }, title = { Regularity versus singularity for elliptic problems in two dimensions }, journal = { Adv. Calc. Var. }, year = { 2013 }, doi = { http://dx.doi.org/10.1515/acv-2012-0004 }, volume = { 6 }, pages = { 415–432 }, URL = { http://cvgmt.sns.it/paper/262/ }, note = { cvgmt preprint} }