Reply to Comment on "Roughness of Interfacial Crack Fronts:   Stress-Weighted Percolation in the Damage Zone"
  This is the reply to a Comment by Alava and Zapperi (cond-mat/0401568) on Schmittbuhl, Hansen and Batrouni, PRL, 90, 045505 (2003). 
Jean Schmittbuhl, Alex Hansen and G. George Batrouni