%0 Journal Article %A T. Ekholm %T Self-intersection surfaces, regular homotopy, and finite order invariants %J Algebra i analiz %D 1999 %P 250-272 %V 11 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/AA_1999_11_5_a11/ %G en %F AA_1999_11_5_a11