Multimodality of rich clusters from the SDSS DR8 within the supercluster-void networkM. Einasto, L. J. Liivamägi, E. Tempel, E. Saar, J. Vennik, P. Nurmi, M. Gramann, J. Einasto, E. Tago, P. Heinämäki, A. Ahvensalmi and V. J. MartínezA&A, 542 (2012) A36DOI: https://doi.org/10.1051/0004-6361/201219119
