Hello, I'm a grad student in computer sciences with a BS in math starting to do research in quantum computing. Can somebody recommend me some references on quantum mechanics? Right now I'm reading Leslie Ballentine's book "Quantum Mechanics: A Modern Development", and just finished reading Nielsen and Chuang's book "Quantum Information and Quantum Computation". Are there other interesting references to take into account? Is there any interesting book about mathematics of quantum computing? Thanks in advanced!!