Czechoslovak Journal of Physics
Czechoslovak Journal of Physics > 2003 > 53 > 2 > 89-97
Czechoslovak Journal of Physics > 2003 > 53 > 4 > 297-300
Czechoslovak Journal of Physics > 2003 > 53 > 2 > 89-97
Czechoslovak Journal of Physics > 2003 > 53 > 4 > 297-300