%0 Journal Article %A Boris A. Rosenfeld %T Differentiable functions in associative and alternative algebras and smooth surfaces in projective spaces over these algebras %J Publications de l 'Institut Mathématique %D 2000 %P 67 %V 2000 %N 88 %I mathdoc %U https://geodesic-test.mathdoc.fr/item/PUIM_2000__2000_88_258138/ %G en %F PUIM_2000__2000_88_258138