%0 Journal Article %A Török, Csaba %T Reference points based transformation and approximation %J Kybernetika %D 2013 %P 644-662 %V 49 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/KYB_2013__49_4_a9/ %G en %F KYB_2013__49_4_a9