Unstable processes in magnetic cataclysmic variables - I. Case of the long-period polar QQ VulpeculaeA. V. Halevin, N. M. Shakhovskoy, I. L. Andronov and S. V. KolesnikovA&A, 394 1 (2002) 171-179DOI: https://doi.org/10.1051/0004-6361:20021107
