Before revision: Based on a recently proposed q-dependent detrended cross-correlation coefficient \rho_q (J.~Kwapie\'n, P.~O\'swi\k{ecimka, S.~Dro\.zd\.z, Phys.
After revision: Based on a recently proposed q-dependent detrended cross-correlation coefficient \rho_q cimka, S.~Dro\.zd\.z, Phys.