Central European Journal of Physics
Central European Journal of Physics > 2009 > 7 > 2 > 291-294
Central European Journal of Physics > 2009 > 7 > 2 > 295-298
Central European Journal of Physics > 2009 > 7 > 2 > 291-294
Central European Journal of Physics > 2009 > 7 > 2 > 295-298