%0 Journal Article %A V. S. Gonchenko %A I. I. Ovsyannikov %T On bifurcations of three-dimensional diffeomorphisms with a~homoclinic tangency to a~``neutral'' saddle fixed point %J Zapiski Nauchnykh Seminarov POMI %D 2003 %P 167-172 %V 300 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_2003_300_a14/ %G en %F ZNSL_2003_300_a14