Astrophysics and Space Science
Astrophysics and Space Science > 2008 > 313 > 4 > 363-371
Astrophysics and Space Science > 2008 > 318 > 1-2 > 25-33
Astrophysics and Space Science > 2008 > 313 > 4 > 363-371
Astrophysics and Space Science > 2008 > 318 > 1-2 > 25-33