G. Gonzalezcasado et al., SUBSTRUCTURE IN GALAXY CLUSTERS - DISCRIMINATING BETWEEN MERGERS AND ACCRETIONS, Astrophysical letters & communications, 36(1-6), 1997, pp. 133-138
The origin of small-scale: substructure is traced back to merger remna
nts by comparing the output of N-body simulations of cluster mergers w
ith the results of a previously analyzed sample of real clusters.