The supercluster-void network V. - The regularity periodogram E. Saar, J. Einasto, O. Toomet, A. A. Starobinsky, H. Andernach, M. Einasto, E. Kasak and E. Tago A&A, 393 1 (2002) 1-23 Published online: 18 September 2002 DOI: 10.1051/0004-6361:20020811