%0 Journal Article %A Bang-Yen Chen %T Geometric and Topological Obstructions to Various Immersions in Submanifold Theory and some Related Open Problems %J Kragujevac Journal of Mathematics %D 2015 %P 93 %V 39 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/KJM_2015_39_1_a8/ %G en %F KJM_2015_39_1_a8