%0 Journal Article %A Pan, T.K. %T Conformal correspondence of surfaces with conservation of angular spreads %J Portugaliae mathematica %D 1966 %P 205-210 %V 25 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/PORMA_1966__25_4_114992/ %G en %F PORMA_1966__25_4_114992