Correlation Function of Superclusters of Galaxies
  We present a study of the two-point correlation function of superclusters of galaxies. The largest catalogs are used. The results show negligible correlation less than 0.1-0.2 for separations up to 500-600 h^{-1} Mpc. Small correlations are obtained using various estimates and samples. Seemingly there are no structures of superclusters of galaxies. 
M. Kalinkov, I. Valtchanov & I. Kuneva (Institute of Astronomy,   Bulgarian Academy of Sciences)