Nuclear reactions in stars are difficult to measure directly in the
laboratory at the small astrophysical energies. In recent years indirect
methods with rare isotopes have been developed and applied to extract
low-energy astrophysical cross sections.Comment: Invited talk (parallel section) at the Int. Conf. Nucleus-Nucleus
Collisions (NN2009), Beijing, China, August 16-21, 2009. To appear in Nucl.
Phys.