Power-law autocorrelated stochastic processes with long-range cross-correlations B. Podobnik, D. F. Fu, H. E. Stanley and P. Ch. Ivanov Eur. Phys. J. B, 56 1 (2007) 47-52 Published online: 04 April 2007 DOI: 10.1140/epjb/e2007-00089-3