%0 Journal Article %A Willy Sierra %T John surfaces associated with a class of harmonic mappings %J Annales Fennici Mathematici %D 2013 %P 595-616 %V 38 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.5186/aasfm.2013.3844/ %R 10.5186/aasfm.2013.3844 %G en %F AFM_2013_38_2_a11