High-order Godunov schemes for global 3D MHD simulations of accretion disks - I. Testing the linear growth of the magneto-rotational instabilityM. Flock, N. Dzyurkevich, H. Klahr and A. MignoneA&A, 516 (2010) A26DOI: https://doi.org/10.1051/0004-6361/200912443