%0 Journal Article %A J. N. Mather %T Stability of $C^\infty$ mappings. IV. Classification of stable germs by $\mathbf R$-algebras %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1973 %V 28 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1973_28_6_a8/ %G ru %F RM_1973_28_6_a8