Rj
发表
India.,
Kolkata,
Pune,
2002,
astro-ph/0211612.
India.,
Pune,
Universidade Federal Fluminense,
2002,
astro-ph/0208366.
Russia.,
S. Petersburg,
V. Frolov,
2002,
astro-ph/0212255.
Heidelberg,
Universidade Federal Fluminense,
H Germany,
2005,
hep-th/0504012.