%0 Journal Article %A A. Philippe %A D. Surgailis %A M.-C. Viano %T Time-Varying Fractionally Integrated Processes with Nonstationary Long Memory %J Teoriâ veroâtnostej i ee primeneniâ %D 2007 %P 768-792 %V 52 %N 4 %U http://geodesic.mathdoc.fr/item/TVP_2007_52_4_a7/ %G en %F TVP_2007_52_4_a7