%0 Journal Article %A Slavica Ristić %T A - a view in the invisible %J Theoretical and applied mechanics %D 2013 %P 87 %V 40 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.2298/TAM1301087R/ %R 10.2298/TAM1301087R %G en %F 10_2298_TAM1301087R