%0 Journal Article
%A Piotr Mormul
%T Singularities of triples of vector fields on $R^{4}$: the focusing stratum
%J Studia Mathematica
%D 1988
%P 241-273
%V 91
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/sm-91-3-241-273/
%R 10.4064/sm-91-3-241-273
%G en
%F 10_4064_sm_91_3_241_273