%0 Journal Article %A S. A. Avdonin %A B. P. Belinskiy %A L. Pandolfi %T Controllability of a Nonhomogeneous String and Ring under Time Dependent Tension %J Mathematical modelling of natural phenomena %D 2010 %P 4-31 %V 5 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.1051/mmnp/20105401/ %R 10.1051/mmnp/20105401 %G en %F MMNP_2010_5_4_a1