Fast X-ray Variability of PKS 2155-304: A Cross Correlation Analysis
Journal article published in 1999 by
Aldo Treves,
Y. H. Zhang,
A. Celotti,
F. Tavecchio,
L. Maraschi,
G. Ghisellini,
G. Tagliaferri,
L. Chiappetti 
,
E. Pian,
C. M. Urry
,
E. Pian,
C. M. Urry
