Continuous Markovian model for Lévy random walks with superdiffusive and superballistic regimes I. A. Lubashevsky, A. Heuer, R. Friedrich and R. Usmanov Eur. Phys. J. B, 78 2 (2010) 207-216 Published online: 12 November 2010 DOI: 10.1140/epjb/e2010-10422-4