${session.getAttribute("locale")} 5 The 2dF Galaxy Redshift Survey: a targeted study of catalogued clusters of galaxies 1000kms-1 clusters of 3.6 × 10-6 h3 Mpc-3. This result is used to constrain models for structure formation; our data favour low-density cosmologies, subject to the usual assumptions concerning the shape and normalization of the power spectrum.]]> Sat 14 Mar 2015 20:55:06 EST ]]>