%0 Journal Article
%A Kobak, Piotr
%T The structure tensor and first order natural differential operators
%J Archivum mathematicum
%D 1992
%P 121-138
%V 28
%N 3-4
%U http://geodesic.mathdoc.fr/item/ARM_1992_28_3-4_a0/
%G en
%F ARM_1992_28_3-4_a0